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[i2c-host PATCH i2c-host-fixes v7 0/2] i2c: rtl9300: Implement I2C block read and write

by Sven Eckelmann

This patch was already applied [1] but then removed. Instead, only the chunk @@ -314,7 +343,7 @@ static u32 rtl9300_i2c_func(struct i2c_adapter *a) { return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | - I2C_FUNC_SMBUS_BLOCK_DATA; + I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_I2C_BLOCK; } was added as part of a patch which has nothing to do with I2C_FUNC_SMBUS_I2C_BLOCK [2] and was never submitted like this [3]. I am therefore resubmitting this patch again with a patch that is removing the errornous I2C_FUNC_SMBUS_I2C_BLOCK from i2c-host-fixes. Order: * The first patch needs to be applied on top of i2c-host-fixes * after i2c-host-fixes (with this patch) is included in the i2c-host branch: - the second patch from this series - The patches 4-12 from Jonas [4] need to be applied on top of it in the i2c-host branch: + https://lore.kernel.org/r/20250831100457.3114-5-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-6-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-7-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-8-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-9-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-10-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-11-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-12-jelonek.jonas@gmail.com + https://lore.kernel.org/r/20250831100457.3114-13-jelonek.jonas@gmail.com [1] https://lore.kernel.org/r/a422shurtl3xrvnh2ieynqq2kw5awqnmall2wjdpozx336m26… [2] https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git/commit… [3] https://lore.kernel.org/r/20250831100457.3114-4-jelonek.jonas@gmail.com [4] https://lore.kernel.org/r/20250831100457.3114-1-jelonek.jonas@gmail.com Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- Changes in v7: - Split into two patches. One for i2c-host-fixes to remove the actually unsupported I2C_FUNC_SMBUS_I2C_BLOCK. The next one is for i2c-host and readds it with the correct code. - Link to v6: https://lore.kernel.org/r/20250926-i2c-rtl9300-multi-byte-v6-1-a2d7d8926105… Changes in v6: - drop all fixes patches (which were already applied) - drop rtl9300_i2c_func chunk which was incorrectly added by another commit [2] (but was not intended to be in there by the original patch [3] - Link to v5: https://lore.kernel.org/r/20250810-i2c-rtl9300-multi-byte-v5-0-cd9dca0db722… Changes in v5: - Simplify function/capability registration by using I2C_FUNC_SMBUS_I2C_BLOCK, thanks Jonas Jelonek - Link to v4: https://lore.kernel.org/r/20250809-i2c-rtl9300-multi-byte-v4-0-d71dd5eb6121… Changes in v4: - Provide only "write" examples for "i2c: rtl9300: Fix multi-byte I2C write" - drop the second initialization of vals in rtl9300_i2c_write() directly in the "Fix multi-byte I2C write" fix - indicate in target branch for each patch in PATCH prefix - minor commit message cleanups - Link to v3: https://lore.kernel.org/r/20250804-i2c-rtl9300-multi-byte-v3-0-e20607e1b28c… Changes in v3: - integrated patch https://lore.kernel.org/r/20250615235248.529019-1-alexguo1023@gmail.com to avoid conflicts in the I2C_SMBUS_BLOCK_DATA code - added Fixes and stable(a)vger.kernel.org to Alex Guo's patch - added Chris Packham's Reviewed-by/Acked-by - Link to v2: https://lore.kernel.org/r/20250803-i2c-rtl9300-multi-byte-v2-0-9b7b759fe2b6… Changes in v2: - add the missing transfer width and read length increase for the SMBus Write/Read - Link to v1: https://lore.kernel.org/r/20250802-i2c-rtl9300-multi-byte-v1-0-5f687e0098e2… --- Harshal Gohel (1): [i2c-host] i2c: rtl9300: Implement I2C block read and write Sven Eckelmann (1): [i2c-host-fixes] i2c: rtl9300: Drop unsupported I2C_FUNC_SMBUS_BLOCK_DATA drivers/i2c/busses/i2c-rtl9300.c | 35 ++++++++++++++++++++++++++++++++--- 1 file changed, 32 insertions(+), 3 deletions(-) --- base-commit: 217f92d91c9faeb6b78bd6205b3585944cbcb433 change-id: 20250802-i2c-rtl9300-multi-byte-edaa1fb0872c Best regards, -- Sven Eckelmann <sven(a)narfation.org>

2 months

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Gratulujeme, ponuka daru

by Kristine Charity Services

2 months

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[PATCH] drm/tegra: dc: fix reference leak in tegra_dc_couple()

by Ma Ke

driver_find_device() calls get_device() to increment the reference count once a matching device is found, but there is no put_device() to balance the reference count. To avoid reference count leakage, add put_device() to decrease the reference count. Found by code review. Cc: stable(a)vger.kernel.org Fixes: a31500fe7055 ("drm/tegra: dc: Restore coupling of display controllers") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- drivers/gpu/drm/tegra/dc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 59d5c1ba145a..6c84bd69b11f 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -3148,6 +3148,7 @@ static int tegra_dc_couple(struct tegra_dc *dc) dc->client.parent = &parent->client; dev_dbg(dc->dev, "coupled to %s\n", dev_name(companion)); + put_device(companion); } return 0; -- 2.17.1

2 months

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[PATCH] ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free

by Jeongjun Park

The previous commit 0718a78f6a9f ("ALSA: usb-audio: Kill timer properly at removal") patched a UAF issue caused by the error timer. However, because the error timer kill added in this patch occurs after the endpoint delete, a race condition to UAF still occurs, albeit rarely. Therefore, to prevent this, the error timer must be killed before freeing the heap memory. Cc: <stable(a)vger.kernel.org> Fixes: 0718a78f6a9f ("ALSA: usb-audio: Kill timer properly at removal") Signed-off-by: Jeongjun Park <aha310510(a)gmail.com> --- sound/usb/midi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/usb/midi.c b/sound/usb/midi.c index acb3bf92857c..8d15f1caa92b 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -1522,6 +1522,8 @@ static void snd_usbmidi_free(struct snd_usb_midi *umidi) { int i; + timer_shutdown_sync(&umidi->error_timer); + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; if (ep->out) @@ -1530,7 +1532,6 @@ static void snd_usbmidi_free(struct snd_usb_midi *umidi) snd_usbmidi_in_endpoint_delete(ep->in); } mutex_destroy(&umidi->mutex); - timer_shutdown_sync(&umidi->error_timer); kfree(umidi); } --

2 months

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by Sales Bard India

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2 months

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[PATCH] perf: arm_cspmu: fix error handling in arm_cspmu_impl_unregister()

by Ma Ke

driver_find_device() calls get_device() to increment the reference count once a matching device is found. device_release_driver() releases the driver, but it does not decrease the reference count that was incremented by driver_find_device(). At the end of the loop, there is no put_device() to balance the reference count. To avoid reference count leakage, add put_device() to decrease the reference count. Found by code review. Cc: stable(a)vger.kernel.org Fixes: bfc653aa89cb ("perf: arm_cspmu: Separate Arm and vendor module") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- drivers/perf/arm_cspmu/arm_cspmu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c index efa9b229e701..e0d4293f06f9 100644 --- a/drivers/perf/arm_cspmu/arm_cspmu.c +++ b/drivers/perf/arm_cspmu/arm_cspmu.c @@ -1365,8 +1365,10 @@ void arm_cspmu_impl_unregister(const struct arm_cspmu_impl_match *impl_match) /* Unbind the driver from all matching backend devices. */ while ((dev = driver_find_device(&arm_cspmu_driver.driver, NULL, - match, arm_cspmu_match_device))) + match, arm_cspmu_match_device))) { device_release_driver(dev); + put_device(dev); + } mutex_lock(&arm_cspmu_lock); -- 2.17.1

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Qualcomm Inventory Updated

by Alan Ye

The following are all Qualcomm's stock, original and authentic. If you need them, please contact us. Snapdragon骁龙 WIFI-5G/6G MPN QTY date code MPN QTY date code SM-6225-0-PSP807-TR-00-0-AB 8000 22+ IPQ5018-0-MRQFN232-MT-01-0 36000 22+ PM-6225-0-FOWNSP144-TR-01-0 8000 22+ QCN6102-0-DRQFN116-TR-01-0 30000 22+ WCD9375-0-WLPSP55-TR-01-3 8000 22+ QCA8337-AL3C 25000 22+ WTR3925-2-106BWLPSP-TR-03-1 8000 22+ WCN-3950-0-58WLPSP-TR-05-2 8000 22+ IPQ-6000-0-FCBGA570-TR-00-0 10000 22+ QCA-8072-0-108DRQFN-MT-00-0 10000 22+ QCM-6490-1-PSP1287-TR-00-0-AA E 12000 23+ QCN-5022-0-DRQFN100B-TR-00-0 10000 22+ PMK-7325-1-1-FOWPSP36-MT-01-0 12000 23+ QCN-5052-0-DRQFN100B-TR-00-0 10000 22+ PM-7325-0-WLNSP120B-TR-00-0 12000 23+ PM-7350C-0-FOWNSP143-MT-02-0 12000 23+ IPQ-6010-0-FCBGA570-TR-00-0 8000 22+ PM-7250B-2-FOWPSP110-TR-00-0 12000 23+ QCA-8075-0-108DRQFN-MT-01-0 8000 22+ WCD-9370-0-WLPSP55-TR-01-0 12000 23+ QCN-5052-0-DRQFN100B-TR-00-0 8000 22+ PM-8008-0-WLPSP20-TR-X0-0 12000 23+ QCN-5021-0-DRQFN100B-TR-03-0 8000 22+ SDR-735-0-PSP219B-TR-001-0 12000 23+ WCN-6750-0-PSP229-TR-01-0 12000 23+ QCA-9886-0-100DRQFN-MT-04-0 14000 22+ QCA9563-AL3A 14000 22+ SDM-450-B-792NSP-TR-01-0-AA 20000 24+ QCA8334-AL3C 14000 22+ WTR-2965-0-59F0WNSP-TR-07-1 20000 24+ PMI-8952-0-144WLNSP-TR-02-0-00 20000 24+ IPQ-5322-0-MRQFN251-MT-00-0 6000 24+ WCN-3680B-0-79BWLNSP-TR-05-1 20000 24+ QCN-6274-0-MSP264-MT-01-0 6000 24+ PM-8953-0-187F0WNSP-TR-01-1 20000 24+ QCA-8385-0-DRQFN172-MT-00-0 6000 24 SDM-660-3-692NSP-TR-01-0-A 28000 23+ IPQ-4018-0-180DRQFN-MT-00-0 150000 22+ PM-660-0-219WLPSP-TR-01-1-01 28000 23+ QCA-8072-0-108DRQFN-MT-00-0 100000 22+ PM-660L-0-196WLPSP-TR-04-0-01 28000 23+ SDR-660-0-180WLPSP-TR-03-0 28000 23+ QCN-9024-0-MSP234-TR-01-0 5000 23+ QET-4101-0-12WLNSP-HR-00-0 28000 23+ QCN-6024-0-MSP234-MT-01-0 20000 22+ WCN-3980-0-82BWLPSP-TR-0B-0 28000 23+ QCA-8081-0-56MQFN-MT-02-0 28000 22+ QCN-9074-0-MSP234-TR-01-0 8000 23+ QCM-2290-0-NSP752-TR-00-0 10000 24+ QCA-9377-3-115WLNSP-TR-03-0 10000 22+ PM-8008-0-WLPSP20-TR-X0-0 10000 24+ QCA-1023-0-115WLNSP-TR-03-0 20000 24+ WCN-3950-0-58WLPSP-TR-05-3 10000 24+ QCC-5181-0-WLNSP99-TR-05-0 10000 24+ PM-4125-3-NSP194-TR-01-0 10000 24+ QCC-5127-0-124CSP-TR-00-0 8000 23+ CSR8670C-ICXT-R 10000 23+ MSM-8909-2-504NSP-TR-01-1-AA 50000 22+ CSR8675C-IBBH-R 10000 23+ WCN-3660B-0-79BWLNSP-TR-05-1 50000 22+ AR8033-AL1A 25000 23+ PM-8909-0-152NSP-TR-01-0-02 50000 22+ AR8035-AL1A 45000 22+ WTR-4905-1-60WLNSP-TR-01-1 50000 22+ AR8031-AL1B 15000 22+ If you have other MPN requirements, please let me know and I will check the latest inventory status for you. We also recycle Qualcomm's excess inventory to help you solve the depreciation risk faced by electronic components Best Secure your updates and feature insights at . Continue Product News Wish to step back? Quickly hit Control Contact Settings.

2 months

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[PATCH net-next 00/15] mptcp: pm: special case for c-flag + luminar endp

by Matthieu Baerts (NGI0)

Here are some patches for the MPTCP PM, including some refactoring that I thought it would be best to send at the end of a cycle to avoid conflicts between net and net-next that could last a few weeks. The most interesting changes are in the first and last patch, the rest are patches refactoring the code & tests to validate the modifications. - Patches 1 & 2: When servers set the C-flag in their MP_CAPABLE to tell clients not to create subflows to the initial address and port -- e.g. a deployment behind a L4 load balancer like a typical CDN deployment -- clients will not use their other endpoints when default settings are used. That's because the in-kernel path-manager uses the 'subflow' endpoints to create subflows only to the initial address and port. The first patch fixes that (for >=v5.14), and the second one validates it. - Patches 3-14: various patches refactoring the code around the in-kernel PM (mainly): split too long functions, rename variables and functions to avoid confusions, reduce structure size, and compare IDs instead of IP addresses. Note that one patch modifies one internal variable used in one BPF selftest. - Patch 15: ability to control endpoints that are used in reaction to a new address announced by the other peer. With that, endpoints can be used only once. Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> --- Notes: - Patches 1 & 2 are sent to net-next on purpose: to delay a bit the backports, just in case. Plus we are at the end of a cycle, and not to delay the other refactoring patches. - Sorry, I wanted to send this series earlier on, but due to some unrelated issues (and holiday), it got delayed. Most patches are pure refactoring ones. --- Matthieu Baerts (NGI0) (15): mptcp: pm: in-kernel: usable client side with C-flag selftests: mptcp: join: validate C-flag + def limit mptcp: pm: in-kernel: refactor fill_local_addresses_vec mptcp: pm: in-kernel: refactor fill_remote_addresses_vec mptcp: pm: rename 'subflows' to 'extra_subflows' mptcp: pm: in-kernel: rename 'subflows_max' to 'limit_extra_subflows' mptcp: pm: in-kernel: rename 'add_addr_signal_max' to 'endp_signal_max' mptcp: pm: in-kernel: rename 'add_addr_accept_max' to 'limit_add_addr_accepted' mptcp: pm: in-kernel: rename 'local_addr_max' to 'endp_subflow_max' mptcp: pm: in-kernel: rename 'local_addr_list' to 'endp_list' mptcp: pm: in-kernel: rename 'addrs' to 'endpoints' mptcp: pm: in-kernel: remove stale_loss_cnt mptcp: pm: in-kernel: reduce pernet struct size mptcp: pm: in-kernel: compare IDs instead of addresses mptcp: pm: in-kernel: add laminar endpoints include/uapi/linux/mptcp.h | 11 +- net/mptcp/pm.c | 32 +- net/mptcp/pm_kernel.c | 569 ++++++++++++++-------- net/mptcp/pm_userspace.c | 2 +- net/mptcp/protocol.h | 21 +- net/mptcp/sockopt.c | 22 +- tools/testing/selftests/bpf/progs/mptcp_subflow.c | 2 +- tools/testing/selftests/net/mptcp/mptcp_join.sh | 11 + 8 files changed, 441 insertions(+), 229 deletions(-) --- base-commit: a1f1f2422e098485b09e55a492de05cf97f9954d change-id: 20250925-net-next-mptcp-c-flag-laminar-f8442e4d4bd9 Best regards, -- Matthieu Baerts (NGI0) <matttbe(a)kernel.org>

2 months

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+ squashfs-reject-negative-file-sizes-in-squashfs_read_inode.patch added to mm-nonmm-unstable branch

by Andrew Morton

The patch titled Subject: Squashfs: reject negative file sizes in squashfs_read_inode() has been added to the -mm mm-nonmm-unstable branch. Its filename is squashfs-reject-negative-file-sizes-in-squashfs_read_inode.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Phillip Lougher <phillip(a)squashfs.org.uk> Subject: Squashfs: reject negative file sizes in squashfs_read_inode() Date: Fri, 26 Sep 2025 22:59:35 +0100 Syskaller reports a "WARNING in ovl_copy_up_file" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative file size. This commit checks for a negative file size and returns EINVAL. Link: https://lkml.kernel.org/r/20250926215935.107233-1-phillip@squashfs.org.uk Fixes: 6545b246a2c8 ("Squashfs: inode operations") Signed-off-by: Phillip Lougher <phillip(a)squashfs.org.uk> Reported-by: syzbot+f754e01116421e9754b9(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/68d580e5.a00a0220.303701.0019.GAE@google.com/ Cc: Amir Goldstein <amir73il(a)gmail.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/squashfs/inode.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) --- a/fs/squashfs/inode.c~squashfs-reject-negative-file-sizes-in-squashfs_read_inode +++ a/fs/squashfs/inode.c @@ -145,6 +145,10 @@ int squashfs_read_inode(struct inode *in goto failed_read; inode->i_size = le32_to_cpu(sqsh_ino->file_size); + if (inode->i_size < 0) { + err = -EINVAL; + goto failed_read; + } frag = le32_to_cpu(sqsh_ino->fragment); if (frag != SQUASHFS_INVALID_FRAG) { /* @@ -197,6 +201,10 @@ int squashfs_read_inode(struct inode *in goto failed_read; inode->i_size = le64_to_cpu(sqsh_ino->file_size); + if (inode->i_size < 0) { + err = -EINVAL; + goto failed_read; + } frag = le32_to_cpu(sqsh_ino->fragment); if (frag != SQUASHFS_INVALID_FRAG) { /* @@ -249,8 +257,12 @@ int squashfs_read_inode(struct inode *in if (err < 0) goto failed_read; - set_nlink(inode, le32_to_cpu(sqsh_ino->nlink)); inode->i_size = le16_to_cpu(sqsh_ino->file_size); + if (inode->i_size < 0) { + err = -EINVAL; + goto failed_read; + } + set_nlink(inode, le32_to_cpu(sqsh_ino->nlink)); inode->i_op = &squashfs_dir_inode_ops; inode->i_fop = &squashfs_dir_ops; inode->i_mode |= S_IFDIR; @@ -273,9 +285,13 @@ int squashfs_read_inode(struct inode *in if (err < 0) goto failed_read; + inode->i_size = le32_to_cpu(sqsh_ino->file_size); + if (inode->i_size < 0) { + err = -EINVAL; + goto failed_read; + } xattr_id = le32_to_cpu(sqsh_ino->xattr); set_nlink(inode, le32_to_cpu(sqsh_ino->nlink)); - inode->i_size = le32_to_cpu(sqsh_ino->file_size); inode->i_op = &squashfs_dir_inode_ops; inode->i_fop = &squashfs_dir_ops; inode->i_mode |= S_IFDIR; @@ -302,7 +318,7 @@ int squashfs_read_inode(struct inode *in goto failed_read; inode->i_size = le32_to_cpu(sqsh_ino->symlink_size); - if (inode->i_size > PAGE_SIZE) { + if (inode->i_size < 0 || inode->i_size > PAGE_SIZE) { ERROR("Corrupted symlink\n"); return -EINVAL; } _ Patches currently in -mm which might be from phillip(a)squashfs.org.uk are squashfs-fix-uninit-value-in-squashfs_get_parent.patch squashfs-add-additional-inode-sanity-checking.patch squashfs-add-seek_data-seek_hole-support.patch squashfs-reject-negative-file-sizes-in-squashfs_read_inode.patch

2 months

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[PATCH] drm: mipi-dsi: Fix an API misuse in mipi_dsi_device_register_full()

by Haoxiang Li

mipi_dsi_device_alloc() calls device_initialize() to initialize value "&dsi->dev". Thus "dsi" should be freed using put_device() in error handling path. Fixes: 068a00233969 ("drm: Add MIPI DSI bus support") Cc: stable(a)vger.kernel.org Signed-off-by: Haoxiang Li <haoxiang_li2024(a)163.com> --- drivers/gpu/drm/drm_mipi_dsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 3a9b3278a6e3..21d9aa29ac34 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -233,7 +233,7 @@ mipi_dsi_device_register_full(struct mipi_dsi_host *host, ret = mipi_dsi_device_add(dsi); if (ret) { dev_err(host->dev, "failed to add DSI device %d\n", ret); - kfree(dsi); + put_device(&dsi->dev); return ERR_PTR(ret); } -- 2.25.1

2 months

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