April 2021 - Linux-stable-mirror

FAILED: patch "[PATCH] KVM: x86/mmu: Yield in TDU MMU iter even if no SPTES changed" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1af4a96025b33587ca953c7ef12a1b20c6e70412 Mon Sep 17 00:00:00 2001 From: Ben Gardon <bgardon(a)google.com> Date: Tue, 2 Feb 2021 10:57:20 -0800 Subject: [PATCH] KVM: x86/mmu: Yield in TDU MMU iter even if no SPTES changed Given certain conditions, some TDP MMU functions may not yield reliably / frequently enough. For example, if a paging structure was very large but had few, if any writable entries, wrprot_gfn_range could traverse many entries before finding a writable entry and yielding because the check for yielding only happens after an SPTE is modified. Fix this issue by moving the yield to the beginning of the loop. Fixes: a6a0b05da9f3 ("kvm: x86/mmu: Support dirty logging for the TDP MMU") Reviewed-by: Peter Feiner <pfeiner(a)google.com> Signed-off-by: Ben Gardon <bgardon(a)google.com> Message-Id: <20210202185734.1680553-15-bgardon(a)google.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index 7cfc0639b1ef..c8a1149cb229 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -501,6 +501,12 @@ static bool zap_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, bool flush_needed = false; tdp_root_for_each_pte(iter, root, start, end) { + if (can_yield && + tdp_mmu_iter_cond_resched(kvm, &iter, flush_needed)) { + flush_needed = false; + continue; + } + if (!is_shadow_present_pte(iter.old_spte)) continue; @@ -515,9 +521,7 @@ static bool zap_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, continue; tdp_mmu_set_spte(kvm, &iter, 0); - - flush_needed = !(can_yield && - tdp_mmu_iter_cond_resched(kvm, &iter, true)); + flush_needed = true; } return flush_needed; } @@ -880,6 +884,9 @@ static bool wrprot_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, for_each_tdp_pte_min_level(iter, root->spt, root->role.level, min_level, start, end) { + if (tdp_mmu_iter_cond_resched(kvm, &iter, false)) + continue; + if (!is_shadow_present_pte(iter.old_spte) || !is_last_spte(iter.old_spte, iter.level)) continue; @@ -888,8 +895,6 @@ static bool wrprot_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, tdp_mmu_set_spte_no_dirty_log(kvm, &iter, new_spte); spte_set = true; - - tdp_mmu_iter_cond_resched(kvm, &iter, false); } return spte_set; } @@ -933,6 +938,9 @@ static bool clear_dirty_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, bool spte_set = false; tdp_root_for_each_leaf_pte(iter, root, start, end) { + if (tdp_mmu_iter_cond_resched(kvm, &iter, false)) + continue; + if (spte_ad_need_write_protect(iter.old_spte)) { if (is_writable_pte(iter.old_spte)) new_spte = iter.old_spte & ~PT_WRITABLE_MASK; @@ -947,8 +955,6 @@ static bool clear_dirty_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, tdp_mmu_set_spte_no_dirty_log(kvm, &iter, new_spte); spte_set = true; - - tdp_mmu_iter_cond_resched(kvm, &iter, false); } return spte_set; } @@ -1056,6 +1062,9 @@ static bool set_dirty_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, bool spte_set = false; tdp_root_for_each_pte(iter, root, start, end) { + if (tdp_mmu_iter_cond_resched(kvm, &iter, false)) + continue; + if (!is_shadow_present_pte(iter.old_spte)) continue; @@ -1063,8 +1072,6 @@ static bool set_dirty_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, tdp_mmu_set_spte(kvm, &iter, new_spte); spte_set = true; - - tdp_mmu_iter_cond_resched(kvm, &iter, false); } return spte_set; @@ -1105,6 +1112,11 @@ static void zap_collapsible_spte_range(struct kvm *kvm, bool spte_set = false; tdp_root_for_each_pte(iter, root, start, end) { + if (tdp_mmu_iter_cond_resched(kvm, &iter, spte_set)) { + spte_set = false; + continue; + } + if (!is_shadow_present_pte(iter.old_spte) || !is_last_spte(iter.old_spte, iter.level)) continue; @@ -1116,7 +1128,7 @@ static void zap_collapsible_spte_range(struct kvm *kvm, tdp_mmu_set_spte(kvm, &iter, 0); - spte_set = !tdp_mmu_iter_cond_resched(kvm, &iter, true); + spte_set = true; } if (spte_set)

3 years, 8 months

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[PATCH] platform/chrome: Update cros_ec sysfs attributes on sensors discovery

by Gwendal Grignou

When cros_ec_sysfs probe is called before cros_ec_sensorhub probe routine, the |kb_wake_angle| attribute will not be displayed, even if there are two accelerometers in the chromebook. Call sysfs_update_group() when accelerometers are enumerated if the cros_ec sysfs attributes group has already been created. Fixes: d60ac88a62df ("mfd / platform / iio: cros_ec: Register sensor through sensorhub") Cc: stable(a)vger.kernel.org Signed-off-by: Gwendal Grignou <gwendal(a)google.com> --- drivers/platform/chrome/cros_ec_sensorhub.c | 5 ++++- drivers/platform/chrome/cros_ec_sysfs.c | 2 ++ include/linux/platform_data/cros_ec_proto.h | 2 ++ 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/platform/chrome/cros_ec_sensorhub.c b/drivers/platform/chrome/cros_ec_sensorhub.c index 9c4af76a9956e..78085ad362ca8 100644 --- a/drivers/platform/chrome/cros_ec_sensorhub.c +++ b/drivers/platform/chrome/cros_ec_sensorhub.c @@ -106,8 +106,11 @@ static int cros_ec_sensorhub_register(struct device *dev, sensor_type[sensorhub->resp->info.type]++; } - if (sensor_type[MOTIONSENSE_TYPE_ACCEL] >= 2) + if (sensor_type[MOTIONSENSE_TYPE_ACCEL] >= 2) { ec->has_kb_wake_angle = true; + if (ec->group) + sysfs_update_group(&ec->class_dev.kobj, ec->group); + } if (cros_ec_check_features(ec, EC_FEATURE_REFINED_TABLET_MODE_HYSTERESIS)) { diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c index f07eabcf9494c..3838d5f51aadc 100644 --- a/drivers/platform/chrome/cros_ec_sysfs.c +++ b/drivers/platform/chrome/cros_ec_sysfs.c @@ -344,6 +344,8 @@ static int cros_ec_sysfs_probe(struct platform_device *pd) ret = sysfs_create_group(&ec_dev->class_dev.kobj, &cros_ec_attr_group); if (ret < 0) dev_err(dev, "failed to create attributes. err=%d\n", ret); + else + ec_dev->group = &cros_ec_attr_group; return ret; } diff --git a/include/linux/platform_data/cros_ec_proto.h b/include/linux/platform_data/cros_ec_proto.h index 02599687770c5..4cd06f68bc536 100644 --- a/include/linux/platform_data/cros_ec_proto.h +++ b/include/linux/platform_data/cros_ec_proto.h @@ -191,6 +191,7 @@ struct cros_ec_platform { /** * struct cros_ec_dev - ChromeOS EC device entry point. * @class_dev: Device structure used in sysfs. + * @group: sysfs attributes group for this EC. * @ec_dev: cros_ec_device structure to talk to the physical device. * @dev: Pointer to the platform device. * @debug_info: cros_ec_debugfs structure for debugging information. @@ -200,6 +201,7 @@ struct cros_ec_platform { */ struct cros_ec_dev { struct device class_dev; + struct attribute_group *group; struct cros_ec_device *ec_dev; struct device *dev; struct cros_ec_debugfs *debug_info; -- 2.31.0.208.g409f899ff0-goog

3 years, 8 months

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patch "usb: xhci-mtk: fix broken streams issue on 0.96 xHCI" added to usb-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: xhci-mtk: fix broken streams issue on 0.96 xHCI to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. >From 1f743c8749eacd906dd3ce402b7cd540bb69ad3e Mon Sep 17 00:00:00 2001 From: Chunfeng Yun <chunfeng.yun(a)mediatek.com> Date: Wed, 31 Mar 2021 17:05:52 +0800 Subject: usb: xhci-mtk: fix broken streams issue on 0.96 xHCI The MediaTek 0.96 xHCI controller on some platforms does not support bulk stream even HCCPARAMS says supporting, due to MaxPSASize is set a default value 1 by mistake, here use XHCI_BROKEN_STREAMS quirk to fix it. Fixes: 94a631d91ad3 ("usb: xhci-mtk: check hcc_params after adding primary hcd") Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Chunfeng Yun <chunfeng.yun(a)mediatek.com> Link: https://lore.kernel.org/r/1617181553-3503-3-git-send-email-chunfeng.yun@med… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/host/xhci-mtk.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index c1bc40289833..4e3d53cc24f4 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -411,6 +411,13 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_SUCCESS; if (mtk->lpm_support) xhci->quirks |= XHCI_LPM_SUPPORT; + + /* + * MTK xHCI 0.96: PSA is 1 by default even if doesn't support stream, + * and it's 3 when support it. + */ + if (xhci->hci_version < 0x100 && HCC_MAX_PSA(xhci->hcc_params) == 4) + xhci->quirks |= XHCI_BROKEN_STREAMS; } /* called during probe() after chip reset completes */ @@ -572,7 +579,8 @@ static int xhci_mtk_probe(struct platform_device *pdev) if (ret) goto put_usb3_hcd; - if (HCC_MAX_PSA(xhci->hcc_params) >= 4) + if (HCC_MAX_PSA(xhci->hcc_params) >= 4 && + !(xhci->quirks & XHCI_BROKEN_STREAMS)) xhci->shared_hcd->can_do_streams = 1; ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); -- 2.31.1

3 years, 8 months

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[PATCH 1/3] drm/i915/ilk-glk: Fix link training on links with LTTPRs

by Imre Deak

The spec requires to use at least 3.2ms for the AUX timeout period if there are LT-tunable PHY Repeaters on the link (2.11.2). An upcoming spec update makes this more specific, by requiring a 3.2ms minimum timeout period for the LTTPR detection reading the 0xF0000-0xF0007 range (3.6.5.1). Accordingly disable LTTPR detection until GLK, where the maximum timeout we can set is only 1.6ms. Link training in the non-transparent mode is known to fail at least on some SKL systems with a WD19 dock on the link, which exposes an LTTPR (see the References below). While this could have different reasons besides the too short AUX timeout used, not detecting LTTPRs (and so not using the non-transparent LT mode) fixes link training on these systems. While at it add a code comment about the platform specific maximum timeout values. v2: Add a comment about the g4x maximum timeout as well. (Ville) Reported-by: Takashi Iwai <tiwai(a)suse.de> Reported-and-tested-by: Santiago Zarate <santiago.zarate(a)suse.com> Reported-and-tested-by: Bodo Graumann <mail(a)bodograumann.de> References: https://gitlab.freedesktop.org/drm/intel/-/issues/3166 Fixes: b30edfd8d0b4 ("drm/i915: Switch to LTTPR non-transparent mode link training") Cc: <stable(a)vger.kernel.org> # v5.11 Cc: Takashi Iwai <tiwai(a)suse.de> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210317184901.4029798-2-imre… (cherry picked from commit 984982f3ef7b240cd24c2feb2762d81d9d8da3c2) --- drivers/gpu/drm/i915/display/intel_dp_aux.c | 7 +++++++ .../gpu/drm/i915/display/intel_dp_link_training.c | 15 ++++++++++++--- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index eaebf123310a..10fe17b7280d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -133,6 +133,7 @@ static u32 g4x_get_aux_send_ctl(struct intel_dp *intel_dp, else precharge = 5; + /* Max timeout value on G4x-BDW: 1.6ms */ if (IS_BROADWELL(dev_priv)) timeout = DP_AUX_CH_CTL_TIME_OUT_600us; else @@ -159,6 +160,12 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp, enum phy phy = intel_port_to_phy(i915, dig_port->base.port); u32 ret; + /* + * Max timeout values: + * SKL-GLK: 1.6ms + * CNL: 3.2ms + * ICL+: 4ms + */ ret = DP_AUX_CH_CTL_SEND_BUSY | DP_AUX_CH_CTL_DONE | DP_AUX_CH_CTL_INTERRUPT | diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 892d7db7d94f..35cda72492d7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -81,6 +81,18 @@ static void intel_dp_read_lttpr_phy_caps(struct intel_dp *intel_dp, static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp) { + struct drm_i915_private *i915 = dp_to_i915(intel_dp); + + if (intel_dp_is_edp(intel_dp)) + return false; + + /* + * Detecting LTTPRs must be avoided on platforms with an AUX timeout + * period < 3.2ms. (see DP Standard v2.0, 2.11.2, 3.6.6.1). + */ + if (INTEL_GEN(i915) < 10) + return false; + if (drm_dp_read_lttpr_common_caps(&intel_dp->aux, intel_dp->lttpr_common_caps) < 0) { memset(intel_dp->lttpr_common_caps, 0, @@ -126,9 +138,6 @@ int intel_dp_lttpr_init(struct intel_dp *intel_dp) bool ret; int i; - if (intel_dp_is_edp(intel_dp)) - return 0; - ret = intel_dp_read_lttpr_common_caps(intel_dp); if (!ret) return 0;

3 years, 8 months

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[PATCH mvebu-dt] ARM: dts: turris-omnia: configure LED[2]/INTn pin as interrupt pin

by Marek Behún

Use the `marvell,reg-init` DT property to configure the LED[2]/INTn pin of the Marvell 88E1514 ethernet PHY on Turris Omnia into interrupt mode. Without this the pin is by default in LED[2] mode, and the Marvell PHY driver configures LED[2] into "On - Link, Blink - Activity" mode. This fixes the issue where the pca9538 GPIO/interrupt controller (which can't mask interrupts in HW) received too many interrupts and after a time started ignoring the interrupt with error message: IRQ 71: nobody cared There is a work in progress to have the Marvell PHY driver support parsing PHY LED nodes from OF and registering the LEDs as Linux LED class devices. Once this is done the PHY driver can also automatically set the pin into INTn mode if it does not find LED[2] in OF. Until then, though, we fix this via `marvell,reg-init` DT property. Signed-off-by: Marek Behún <kabel(a)kernel.org> Reported-by: Rui Salvaterra <rsalvaterra(a)gmail.com> Fixes: 26ca8b52d6e1 ("ARM: dts: add support for Turris Omnia") Cc: Uwe Kleine-König <uwe(a)kleine-koenig.org> Cc: linux-arm-kernel(a)lists.infradead.org Cc: Andrew Lunn <andrew(a)lunn.ch> Cc: Gregory CLEMENT <gregory.clement(a)bootlin.com> Cc: <stable(a)vger.kernel.org> --- This patch fixes bug introduced with the commit that added Turris Omnia's DTS (26ca8b52d6e1), but will not apply cleanly because there is commit 8ee4a5f4f40d which changed node name and node compatible property and this commit did not go into stable. So either commit 8ee4a5f4f40d has also to go into stable before this, or this patch has to be fixed a little in order to apply to 4.14+. Please let me know how should I handle this. --- arch/arm/boot/dts/armada-385-turris-omnia.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts index 646a06420c77..b0f3fd8e1429 100644 --- a/arch/arm/boot/dts/armada-385-turris-omnia.dts +++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts @@ -389,6 +389,7 @@ &mdio { phy1: ethernet-phy@1 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <1>; + marvell,reg-init = <3 18 0 0x4985>; /* irq is connected to &pcawan pin 7 */ }; -- 2.26.2

3 years, 8 months

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Fix bug for Ingenic X1000.

by 周琰杰 (Zhou Yanjie)

For SoCs after X1000, only send "X1000_I2C_DC_STOP" when last byte, or it will cause error when I2C write operation. 周琰杰 (Zhou Yanjie) (1): I2C: JZ4780: Fix bug for Ingenic X1000. drivers/i2c/busses/i2c-jz4780.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) -- 2.7.4

3 years, 8 months

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patch "usb: xhci-mtk: fix broken streams issue on 0.96 xHCI" added to usb-testing

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: xhci-mtk: fix broken streams issue on 0.96 xHCI to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 1f743c8749eacd906dd3ce402b7cd540bb69ad3e Mon Sep 17 00:00:00 2001 From: Chunfeng Yun <chunfeng.yun(a)mediatek.com> Date: Wed, 31 Mar 2021 17:05:52 +0800 Subject: usb: xhci-mtk: fix broken streams issue on 0.96 xHCI The MediaTek 0.96 xHCI controller on some platforms does not support bulk stream even HCCPARAMS says supporting, due to MaxPSASize is set a default value 1 by mistake, here use XHCI_BROKEN_STREAMS quirk to fix it. Fixes: 94a631d91ad3 ("usb: xhci-mtk: check hcc_params after adding primary hcd") Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Chunfeng Yun <chunfeng.yun(a)mediatek.com> Link: https://lore.kernel.org/r/1617181553-3503-3-git-send-email-chunfeng.yun@med… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/host/xhci-mtk.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index c1bc40289833..4e3d53cc24f4 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -411,6 +411,13 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_SUCCESS; if (mtk->lpm_support) xhci->quirks |= XHCI_LPM_SUPPORT; + + /* + * MTK xHCI 0.96: PSA is 1 by default even if doesn't support stream, + * and it's 3 when support it. + */ + if (xhci->hci_version < 0x100 && HCC_MAX_PSA(xhci->hcc_params) == 4) + xhci->quirks |= XHCI_BROKEN_STREAMS; } /* called during probe() after chip reset completes */ @@ -572,7 +579,8 @@ static int xhci_mtk_probe(struct platform_device *pdev) if (ret) goto put_usb3_hcd; - if (HCC_MAX_PSA(xhci->hcc_params) >= 4) + if (HCC_MAX_PSA(xhci->hcc_params) >= 4 && + !(xhci->quirks & XHCI_BROKEN_STREAMS)) xhci->shared_hcd->can_do_streams = 1; ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); -- 2.31.1

3 years, 8 months

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[PATCH 1/3] file: fix close_range() for unshare+cloexec

by Christian Brauner

From: Christian Brauner <christian.brauner(a)ubuntu.com> syzbot reported a bug when putting the last reference to a tasks file descriptor table. Debugging this showed we didn't recalculate the current maximum fd number for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC after we unshared the file descriptors table. So max_fd could exceed the current fdtable maximum causing us to set excessive bits. As a concrete example, let's say the user requested everything from fd 4 to ~0UL to be closed and their current fdtable size is 256 with their highest open fd being 4. With CLOSE_RANGE_UNSHARE the caller will end up with a new fdtable which has room for 64 file descriptors since that is the lowest fdtable size we accept. But now max_fd will still point to 255 and needs to be adjusted. Fix this by retrieving the correct maximum fd value in __range_cloexec(). Reported-by: syzbot+283ce5a46486d6acdbaf(a)syzkaller.appspotmail.com Fixes: 582f1fb6b721 ("fs, close_range: add flag CLOSE_RANGE_CLOEXEC") Fixes: fec8a6a69103 ("close_range: unshare all fds for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC") Cc: Christoph Hellwig <hch(a)lst.de> Cc: Giuseppe Scrivano <gscrivan(a)redhat.com> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: linux-fsdevel(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner(a)ubuntu.com> --- fs/file.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/fs/file.c b/fs/file.c index f3a4bac2cbe9..f633348029a5 100644 --- a/fs/file.c +++ b/fs/file.c @@ -629,17 +629,30 @@ int close_fd(unsigned fd) } EXPORT_SYMBOL(close_fd); /* for ksys_close() */ +/** + * last_fd - return last valid index into fd table + * @cur_fds: files struct + * + * Context: Either rcu read lock or files_lock must be held. + * + * Returns: Last valid index into fdtable. + */ +static inline unsigned last_fd(struct fdtable *fdt) +{ + return fdt->max_fds - 1; +} + static inline void __range_cloexec(struct files_struct *cur_fds, unsigned int fd, unsigned int max_fd) { struct fdtable *fdt; - if (fd > max_fd) - return; - + /* make sure we're using the correct maximum value */ spin_lock(&cur_fds->file_lock); fdt = files_fdtable(cur_fds); - bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1); + max_fd = min(last_fd(fdt), max_fd); + if (fd <= max_fd) + bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1); spin_unlock(&cur_fds->file_lock); } -- 2.27.0

3 years, 8 months

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[PATCH 5.11 000/120] 5.11.9-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.11.9 release. There are 120 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Wed, 24 Mar 2021 12:19:09 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.11.9-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.11.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.11.9-rc1 Johan Hovold <johan(a)kernel.org> x86/apic/of: Fix CPU devicetree-node lookups Thomas Gleixner <tglx(a)linutronix.de> genirq: Disable interrupts for force threaded handlers Lv Yunlong <lyl2019(a)mail.ustc.edu.cn> firmware/efi: Fix a use after bug in efi_mem_reserve_persistent Ard Biesheuvel <ardb(a)kernel.org> efi: use 32-bit alignment for efi_guid_t literals Peter Zijlstra <peterz(a)infradead.org> static_call: Fix static_call_update() sanity check Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> MAINTAINERS: move the staging subsystem to lists.linux.dev Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> MAINTAINERS: move some real subsystems off of the staging mailing list Harshad Shirwadkar <harshadshirwadkar(a)gmail.com> ext4: fix rename whiteout with fast commit Jan Kara <jack(a)suse.cz> ext4: fix timer use-after-free on failed mount Shijie Luo <luoshijie1(a)huawei.com> ext4: fix potential error in ext4_do_update_inode zhangyi (F) <yi.zhang(a)huawei.com> ext4: do not try to set xattr into ea_inode if value is empty Pan Bian <bianpan2016(a)163.com> ext4: stop inode update before return zhangyi (F) <yi.zhang(a)huawei.com> ext4: find old entry again if failed to rename whiteout Eric Biggers <ebiggers(a)google.com> ext4: fix error handling in ext4_end_enable_verity() Shawn Guo <shawn.guo(a)linaro.org> efivars: respect EFI_UNSUPPORTED return from firmware Oleg Nesterov <oleg(a)redhat.com> x86: Introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall() Oleg Nesterov <oleg(a)redhat.com> x86: Move TS_COMPAT back to asm/thread_info.h Oleg Nesterov <oleg(a)redhat.com> kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() Thomas Gleixner <tglx(a)linutronix.de> x86/ioapic: Ignore IRQ2 again Kan Liang <kan.liang(a)linux.intel.com> perf/x86/intel: Fix unchecked MSR access error caused by VLBR_EVENT Kan Liang <kan.liang(a)linux.intel.com> perf/x86/intel: Fix a crash caused by zero PEBS status Tyrel Datwyler <tyreld(a)linux.ibm.com> PCI: rpadlpar: Fix potential drc_name corruption in store functions Fabrice Gasnier <fabrice.gasnier(a)foss.st.com> counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register Fabrice Gasnier <fabrice.gasnier(a)foss.st.com> counter: stm32-timer-cnt: fix ceiling write max value Ye Xiang <xiang.ye(a)intel.com> iio: hid-sensor-temperature: Fix issues of timestamp channel Ye Xiang <xiang.ye(a)intel.com> iio: hid-sensor-prox: Fix scale not correct issue Ye Xiang <xiang.ye(a)intel.com> iio: hid-sensor-humidity: Fix alignment issue of timestamp channel Alexandru Ardelean <alexandru.ardelean(a)analog.com> iio: adc: adi-axi-adc: add proper Kconfig dependencies Wilfried Wessner <wilfried.wessner(a)gmail.com> iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask Linus Walleij <linus.walleij(a)linaro.org> iio: adc: ab8500-gpadc: Fix off by 10 to 3 Dinghao Liu <dinghao.liu(a)zju.edu.cn> iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler Dan Carpenter <dan.carpenter(a)oracle.com> iio: adis16400: Fix an error code in adis16400_initial_setup() Jonathan Albrieux <jonathan.albrieux(a)gmail.com> iio:adc:qcom-spmi-vadc: add default scale to LR_MUX2_BAT_ID channel Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio:adc:stm32-adc: Add HAS_IOMEM dependency Mika Westerberg <mika.westerberg(a)linux.intel.com> thunderbolt: Increase runtime PM reference count on DP tunnel discovery Mika Westerberg <mika.westerberg(a)linux.intel.com> thunderbolt: Initialize HopID IDAs in tb_switch_alloc() Wesley Cheng <wcheng(a)codeaurora.org> usb: dwc3: gadget: Prevent EP queuing while stopping transfers Wesley Cheng <wcheng(a)codeaurora.org> usb: dwc3: gadget: Allow runtime suspend if UDC unbinded Badhri Jagan Sridharan <badhri(a)google.com> usb: typec: tcpm: Invoke power_supply_changed for tcpm-source-psy- Elias Rudberg <mail(a)eliasrudberg.se> usb: typec: Remove vdo[3] part of tps6598x_rx_identity_reg struct Jim Lin <jilin(a)nvidia.com> usb: gadget: configfs: Fix KASAN use-after-free Colin Ian King <colin.king(a)canonical.com> usbip: Fix incorrect double assignment to udc->ud.tcp_rx Alan Stern <stern(a)rowland.harvard.edu> usb-storage: Add quirk to defeat Kindle's automatic unload Christophe Leroy <christophe.leroy(a)csgroup.eu> powerpc: Force inlining of cpu_has_feature() to avoid build failure Sagi Grimberg <sagi(a)grimberg.me> nvme-rdma: fix possible hang when failing to set io queues Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> gpiolib: Assign fwnode to parent's if no primary one provided Christian König <christian.koenig(a)amd.com> drm/ttm: make ttm_bo_unpin more defensive Daniel Vetter <daniel.vetter(a)ffwll.ch> drm/ttm: Warn on pinning without holding a reference Christophe Leroy <christophe.leroy(a)csgroup.eu> powerpc/vdso32: Add missing _restgpr_31_x to fix build failure Jonathan Marek <jonathan(a)marek.ca> ASoC: codecs: lpass-wsa-macro: fix RX MIX input controls Jonathan Marek <jonathan(a)marek.ca> ASoC: codecs: lpass-va-macro: mute/unmute all active decimators William Breathitt Gray <vilhelm.gray(a)gmail.com> counter: stm32-timer-cnt: Report count function when SLAVE_MODE_DISABLED Heinrich Schuchardt <xypron.glpk(a)gmx.de> RISC-V: correct enum sbi_ext_rfence_fid Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> scsi: mpt3sas: Do not use GFP_KERNEL in atomic context dongjian <dongjian(a)yulong.com> scsi: ufs: ufs-mediatek: Correct operator & -> && Lv Yunlong <lyl2019(a)mail.ustc.edu.cn> scsi: myrs: Fix a double free in myrs_cleanup() Dan Carpenter <dan.carpenter(a)oracle.com> scsi: lpfc: Fix some error codes in debugfs Kefeng Wang <wangkefeng.wang(a)huawei.com> riscv: Correct SPARSEMEM configuration Geert Uytterhoeven <geert(a)linux-m68k.org> RISC-V: Fix out-of-bounds accesses in init_resources() Steve French <stfrench(a)microsoft.com> cifs: fix allocation size on newly created files Aurelien Aptel <aaptel(a)suse.com> cifs: warn and fail if trying to use rootfs without the config option Masahiro Yamada <masahiroy(a)kernel.org> kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL again Pavel Skripkin <paskripkin(a)gmail.com> net/qrtr: fix __netdev_alloc_skb call Jens Axboe <axboe(a)kernel.dk> io_uring: ensure that SQPOLL thread is started for exit Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> pstore: Fix warning in pstore_kill_sb() Dmitry Osipenko <digetx(a)gmail.com> iommu/tegra-smmu: Make tegra_smmu_probe_device() to handle all IOMMU phandles Umesh Nerlige Ramappa <umesh.nerlige.ramappa(a)intel.com> i915/perf: Start hrtimer only if sampling the OA buffer Daniel Kobras <kobras(a)puzzle-itc.de> sunrpc: fix refcount leak for rpc auth modules Gautam Dawar <gdawar.xilinx(a)gmail.com> vhost_vdpa: fix the missing irq_bypass_unregister_producer() invocation Jason Gunthorpe <jgg(a)ziepe.ca> vfio: IOMMU_API should be selected Timo Rothenpieler <timo(a)rothenpieler.org> svcrdma: disable timeouts on rdma backchannel Olga Kornievskaia <kolga(a)netapp.com> NFSD: fix dest to src mount in inter-server COPY Joe Korty <joe.korty(a)concurrent-rt.com> NFSD: Repair misuse of sv_lock in 5.10.16-rt30. J. Bruce Fields <bfields(a)redhat.com> nfsd: don't abort copies early Trond Myklebust <trond.myklebust(a)hammerspace.com> nfsd: Don't keep looking up unhashed files in the nfsd file cache Sagi Grimberg <sagi(a)grimberg.me> nvmet: don't check iosqes,iocqes for discovery controllers Sagi Grimberg <sagi(a)grimberg.me> nvme-tcp: fix a NULL deref when receiving a 0-length r2t PDU Sagi Grimberg <sagi(a)grimberg.me> nvme-tcp: fix possible hang when failing to set io queues Sagi Grimberg <sagi(a)grimberg.me> nvme-tcp: fix misuse of __smp_processor_id with preemption enabled Christoph Hellwig <hch(a)lst.de> nvme: fix Write Zeroes limitations Colin Ian King <colin.king(a)canonical.com> ALSA: usb-audio: Fix unintentional sign extension issue David Howells <dhowells(a)redhat.com> afs: Stop listxattr() from listing "afs.*" attributes David Howells <dhowells(a)redhat.com> afs: Fix accessing YFS xattrs on a non-YFS server Sameer Pujar <spujar(a)nvidia.com> ASoC: simple-card-utils: Do not handle device clock Srinivasa Rao Mandadapu <srivasam(a)codeaurora.org> ASoC: qcom: lpass-cpu: Fix lpass dai ids parse Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> ASoC: codecs: wcd934x: add a sanity check in set channel map Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> ASoC: qcom: sdm845: Fix array out of range on rx slim channels Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> ASoC: qcom: sdm845: Fix array out of bounds access Pan Xiuli <xiuli.pan(a)linux.intel.com> ASoC: SOF: intel: fix wrong poll bits in dsp power down Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> ASoC: SOF: Intel: unregister DMIC device on probe error Hans de Goede <hdegoede(a)redhat.com> ASoC: Intel: bytcr_rt5640: Fix HP Pavilion x2 10-p0XX OVCD current threshold Alexander Shiyan <shc_work(a)mail.ru> ASoC: fsl_ssi: Fix TDM slot setup for I2S mode Joerg Roedel <jroedel(a)suse.de> iommu/amd: Move Stoney Ridge check to detect_ivrs() Joerg Roedel <jroedel(a)suse.de> iommu/amd: Keep track of amd_iommu_irq_remap state Joerg Roedel <jroedel(a)suse.de> iommu/amd: Don't call early_amd_iommu_init() when AMD IOMMU is disabled Dillon Varone <dillon.varone(a)amd.com> drm/amd/display: Remove MPC gamut remap logic for DCN30 Calvin Hou <Calvin.Hou(a)amd.com> drm/amd/display: Correct algorithm for reversed gamma Sung Lee <sung.lee(a)amd.com> drm/amd/display: Copy over soc values before bounding box creation Stefano Garzarella <sgarzare(a)redhat.com> vhost-vdpa: set v->config_ctx to NULL if eventfd_ctx_fdget() fails Stefano Garzarella <sgarzare(a)redhat.com> vhost-vdpa: fix use-after-free of v->config_ctx David Sterba <dsterba(a)suse.com> btrfs: fix slab cache flags for free space tree bitmap Filipe Manana <fdmanana(a)suse.com> btrfs: fix race when cloning extent buffer during rewind of an old root Chao Yu <chao(a)kernel.org> zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone() Damien Le Moal <damien.lemoal(a)wdc.com> zonefs: prevent use of seq files as swap file Damien Le Moal <damien.lemoal(a)wdc.com> zonefs: Fix O_APPEND async write handling Niklas Schnelle <schnelle(a)linux.ibm.com> s390/pci: fix leak of PCI device structure Niklas Schnelle <schnelle(a)linux.ibm.com> s390/pci: remove superfluous zdev->zbus check Niklas Schnelle <schnelle(a)linux.ibm.com> s390/pci: refactor zpci_create_device() Gerald Schaefer <gerald.schaefer(a)linux.ibm.com> s390/vtime: fix increased steal time accounting Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Revert "PM: runtime: Update device status before letting suppliers suspend" Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs for HP 850 G8 Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs for HP 440 G8 Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs for HP 840 G8 Xiaoliang Yu <yxl_22(a)outlook.com> ALSA: hda/realtek: Apply headset-mic quirks for Xiaomi Redmibook Air Hui Wang <hui.wang(a)canonical.com> ALSA: hda: generic: Fix the micmute led init state Xiaoliang Yu <yxl_22(a)outlook.com> ALSA: hda/realtek: apply pin quirk for XiaomiNotebook Pro Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: dice: fix null pointer dereference when node is disconnected Meng Li <Meng.Li(a)windriver.com> spi: cadence: set cqspi to the driver_data field of struct device Shengjiu Wang <shengjiu.wang(a)nxp.com> ASoC: ak5558: Add MODULE_DEVICE_TABLE Shengjiu Wang <shengjiu.wang(a)nxp.com> ASoC: ak4458: Add MODULE_DEVICE_TABLE ------------- Diffstat: MAINTAINERS | 7 +- Makefile | 10 +- arch/powerpc/include/asm/cpu_has_feature.h | 4 +- arch/powerpc/kernel/vdso32/gettimeofday.S | 11 +++ arch/riscv/Kconfig | 4 +- arch/riscv/include/asm/sbi.h | 4 +- arch/riscv/kernel/setup.c | 3 +- arch/s390/include/asm/pci.h | 6 +- arch/s390/kernel/vtime.c | 2 +- arch/s390/pci/pci.c | 85 +++++++++++++---- arch/s390/pci/pci_clp.c | 40 +------- arch/s390/pci/pci_event.c | 22 ++--- arch/x86/events/intel/core.c | 3 + arch/x86/events/intel/ds.c | 2 +- arch/x86/include/asm/processor.h | 9 -- arch/x86/include/asm/thread_info.h | 23 ++++- arch/x86/kernel/apic/apic.c | 5 + arch/x86/kernel/apic/io_apic.c | 10 ++ arch/x86/kernel/signal.c | 24 +---- drivers/base/power/runtime.c | 62 +++++-------- drivers/counter/stm32-timer-cnt.c | 55 ++++++----- drivers/firmware/efi/efi.c | 3 +- drivers/firmware/efi/vars.c | 4 + drivers/gpio/gpiolib.c | 7 ++ drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 34 +------ .../gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 5 + .../gpu/drm/amd/display/dc/dcn30/dcn30_cm_common.c | 26 ++++-- drivers/gpu/drm/i915/i915_perf.c | 13 +-- drivers/gpu/drm/ttm/ttm_bo.c | 2 +- drivers/iio/adc/Kconfig | 3 + drivers/iio/adc/ab8500-gpadc.c | 2 +- drivers/iio/adc/ad7949.c | 2 +- drivers/iio/adc/qcom-spmi-vadc.c | 2 +- drivers/iio/gyro/mpu3050-core.c | 2 + drivers/iio/humidity/hid-sensor-humidity.c | 12 ++- drivers/iio/imu/adis16400.c | 3 +- drivers/iio/light/hid-sensor-prox.c | 13 ++- drivers/iio/temperature/hid-sensor-temperature.c | 14 +-- drivers/iommu/amd/init.c | 36 ++++---- drivers/iommu/tegra-smmu.c | 7 +- drivers/nvme/host/core.c | 36 +++----- drivers/nvme/host/rdma.c | 7 +- drivers/nvme/host/tcp.c | 16 +++- drivers/nvme/target/core.c | 17 +++- drivers/pci/hotplug/rpadlpar_sysfs.c | 14 ++- drivers/pci/hotplug/s390_pci_hpc.c | 3 +- drivers/scsi/lpfc/lpfc_debugfs.c | 4 +- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 +- drivers/scsi/myrs.c | 2 +- drivers/scsi/ufs/ufs-mediatek.c | 2 +- drivers/spi/spi-cadence-quadspi.c | 1 + drivers/thunderbolt/switch.c | 18 ++-- drivers/thunderbolt/tb.c | 4 + drivers/usb/dwc3/gadget.c | 22 ++++- drivers/usb/gadget/configfs.c | 14 ++- drivers/usb/storage/transport.c | 7 ++ drivers/usb/storage/unusual_devs.h | 12 +++ drivers/usb/typec/tcpm/tcpm.c | 9 +- drivers/usb/typec/tps6598x.c | 1 - drivers/usb/usbip/vudc_sysfs.c | 2 +- drivers/vfio/Kconfig | 2 +- drivers/vhost/vdpa.c | 20 ++-- fs/afs/dir.c | 1 - fs/afs/file.c | 1 - fs/afs/fs_operation.c | 7 +- fs/afs/inode.c | 1 - fs/afs/internal.h | 1 - fs/afs/mntpt.c | 1 - fs/afs/xattr.c | 31 ++----- fs/btrfs/ctree.c | 2 + fs/btrfs/inode.c | 2 +- fs/cifs/fs_context.c | 6 +- fs/cifs/inode.c | 10 +- fs/ext4/ext4.h | 2 + fs/ext4/fast_commit.c | 9 +- fs/ext4/inode.c | 12 ++- fs/ext4/namei.c | 32 ++++++- fs/ext4/super.c | 2 +- fs/ext4/verity.c | 89 +++++++++++------- fs/ext4/xattr.c | 2 +- fs/io_uring.c | 6 +- fs/nfsd/filecache.c | 2 + fs/nfsd/nfs4proc.c | 2 +- fs/nfsd/nfs4state.c | 2 +- fs/pstore/inode.c | 2 +- fs/select.c | 10 +- fs/zonefs/super.c | 101 ++++++++++++++++++--- include/drm/ttm/ttm_bo_api.h | 8 +- include/linux/efi.h | 6 +- include/linux/thread_info.h | 13 +++ include/linux/usb_usual.h | 2 + kernel/futex.c | 3 +- kernel/irq/manage.c | 4 + kernel/jump_label.c | 8 ++ kernel/static_call.c | 11 ++- kernel/time/alarmtimer.c | 2 +- kernel/time/hrtimer.c | 2 +- kernel/time/posix-cpu-timers.c | 2 +- net/qrtr/qrtr.c | 2 +- net/sunrpc/svc.c | 6 +- net/sunrpc/svc_xprt.c | 4 +- net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 6 +- sound/firewire/dice/dice-stream.c | 5 +- sound/pci/hda/hda_generic.c | 2 +- sound/pci/hda/patch_realtek.c | 16 ++++ sound/soc/codecs/ak4458.c | 1 + sound/soc/codecs/ak5558.c | 1 + sound/soc/codecs/lpass-va-macro.c | 28 +++--- sound/soc/codecs/lpass-wsa-macro.c | 20 ++-- sound/soc/codecs/wcd934x.c | 6 ++ sound/soc/fsl/fsl_ssi.c | 6 +- sound/soc/generic/simple-card-utils.c | 13 +-- sound/soc/intel/boards/bytcr_rt5640.c | 2 +- sound/soc/qcom/lpass-cpu.c | 2 +- sound/soc/qcom/sdm845.c | 6 +- sound/soc/sof/intel/hda-dsp.c | 2 +- sound/soc/sof/intel/hda.c | 1 + sound/usb/mixer_quirks.c | 4 +- 118 files changed, 809 insertions(+), 517 deletions(-)

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[PATCH] crypto: rng - fix crypto_rng_reset() refcounting when !CRYPTO_STATS

by Eric Biggers

From: Eric Biggers <ebiggers(a)google.com> crypto_stats_get() is a no-op when the kernel is compiled without CONFIG_CRYPTO_STATS, so pairing it with crypto_alg_put() unconditionally (as crypto_rng_reset() does) is wrong. Fix this by moving the call to crypto_stats_get() to just before the actual algorithm operation which might need it. This makes it always paired with crypto_stats_rng_seed(). Fixes: eed74b3eba9e ("crypto: rng - Fix a refcounting bug in crypto_rng_reset()") Cc: stable(a)vger.kernel.org Signed-off-by: Eric Biggers <ebiggers(a)google.com> --- crypto/rng.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/crypto/rng.c b/crypto/rng.c index a888d84b524a4..fea082b25fe4b 100644 --- a/crypto/rng.c +++ b/crypto/rng.c @@ -34,22 +34,18 @@ int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen) u8 *buf = NULL; int err; - crypto_stats_get(alg); if (!seed && slen) { buf = kmalloc(slen, GFP_KERNEL); - if (!buf) { - crypto_alg_put(alg); + if (!buf) return -ENOMEM; - } err = get_random_bytes_wait(buf, slen); - if (err) { - crypto_alg_put(alg); + if (err) goto out; - } seed = buf; } + crypto_stats_get(alg); err = crypto_rng_alg(tfm)->seed(tfm, seed, slen); crypto_stats_rng_seed(alg, err); out: -- 2.31.0

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