June 2023 - Linux-stable-mirror

[PATCH 5/6] bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent

by Coly Li

From: Zheng Wang <zyytlz.wz(a)163.com> In some specific situation, the return value of __bch_btree_node_alloc may be NULL. This may lead to poential NULL pointer dereference in caller function like a calling chaion : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc. Fix it by initialize return value in __bch_btree_node_alloc before return. Fixes: cafe56359144 ("bcache: A block layer cache") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Wang <zyytlz.wz(a)163.com> Signed-off-by: Coly Li <colyli(a)suse.de> --- drivers/md/bcache/btree.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 7c21e54468bf..0ddf91204782 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -1090,10 +1090,12 @@ struct btree *__bch_btree_node_alloc(struct cache_set *c, struct btree_op *op, struct btree *parent) { BKEY_PADDED(key) k; - struct btree *b = ERR_PTR(-EAGAIN); + struct btree *b; mutex_lock(&c->bucket_lock); retry: + /* return ERR_PTR(-EAGAIN) when it fails */ + b = ERR_PTR(-EAGAIN); if (__bch_bucket_alloc_set(c, RESERVE_BTREE, &k.key, wait)) goto err; -- 2.35.3

2 years

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[PATCH 4/6] bcache: Remove some unnecessary NULL point check for the return value of __bch_btree_node_alloc-related pointer

by Coly Li

From: Zheng Wang <zyytlz.wz(a)163.com> Due to the previously fix of __bch_btree_node_alloc, the return value will never be a NULL pointer. So IS_ERR is enough to handle the failure situation. Fix it by replacing IS_ERR_OR_NULL check to IS_ERR check. Fixes: cafe56359144 ("bcache: A block layer cache") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Wang <zyytlz.wz(a)163.com> Signed-off-by: Coly Li <colyli(a)suse.de> --- drivers/md/bcache/btree.c | 10 +++++----- drivers/md/bcache/super.c | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 147c493a989a..7c21e54468bf 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -1138,7 +1138,7 @@ static struct btree *btree_node_alloc_replacement(struct btree *b, { struct btree *n = bch_btree_node_alloc(b->c, op, b->level, b->parent); - if (!IS_ERR_OR_NULL(n)) { + if (!IS_ERR(n)) { mutex_lock(&n->write_lock); bch_btree_sort_into(&b->keys, &n->keys, &b->c->sort); bkey_copy_key(&n->key, &b->key); @@ -1340,7 +1340,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, memset(new_nodes, 0, sizeof(new_nodes)); closure_init_stack(&cl); - while (nodes < GC_MERGE_NODES && !IS_ERR_OR_NULL(r[nodes].b)) + while (nodes < GC_MERGE_NODES && !IS_ERR(r[nodes].b)) keys += r[nodes++].keys; blocks = btree_default_blocks(b->c) * 2 / 3; @@ -1352,7 +1352,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, for (i = 0; i < nodes; i++) { new_nodes[i] = btree_node_alloc_replacement(r[i].b, NULL); - if (IS_ERR_OR_NULL(new_nodes[i])) + if (IS_ERR(new_nodes[i])) goto out_nocoalesce; } @@ -1487,7 +1487,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, bch_keylist_free(&keylist); for (i = 0; i < nodes; i++) - if (!IS_ERR_OR_NULL(new_nodes[i])) { + if (!IS_ERR(new_nodes[i])) { btree_node_free(new_nodes[i]); rw_unlock(true, new_nodes[i]); } @@ -1669,7 +1669,7 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op, if (should_rewrite) { n = btree_node_alloc_replacement(b, NULL); - if (!IS_ERR_OR_NULL(n)) { + if (!IS_ERR(n)) { bch_btree_node_write_sync(n); bch_btree_set_root(n); diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 7e9d19fd21dd..077149c4050b 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1723,7 +1723,7 @@ static void cache_set_flush(struct closure *cl) if (!IS_ERR_OR_NULL(c->gc_thread)) kthread_stop(c->gc_thread); - if (!IS_ERR_OR_NULL(c->root)) + if (!IS_ERR(c->root)) list_add(&c->root->list, &c->btree_cache); /* @@ -2087,7 +2087,7 @@ static int run_cache_set(struct cache_set *c) err = "cannot allocate new btree root"; c->root = __bch_btree_node_alloc(c, NULL, 0, true, NULL); - if (IS_ERR_OR_NULL(c->root)) + if (IS_ERR(c->root)) goto err; mutex_lock(&c->root->write_lock); -- 2.35.3

2 years

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[PATCH AUTOSEL 5.4 1/8] regmap: Account for register length when chunking

by Sasha Levin

From: Jim Wylder <jwylder(a)google.com> [ Upstream commit 3981514180c987a79ea98f0ae06a7cbf58a9ac0f ] Currently, when regmap_raw_write() splits the data, it uses the max_raw_write value defined for the bus. For any bus that includes the target register address in the max_raw_write value, the chunked transmission will always exceed the maximum transmission length. To avoid this problem, subtract the length of the register and the padding from the maximum transmission. Signed-off-by: Jim Wylder <jwylder(a)google.com Link: https://lore.kernel.org/r/20230517152444.3690870-2-jwylder@google.com Signed-off-by: Mark Brown <broonie(a)kernel.org Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/base/regmap/regmap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 43c0452a8ba91..a69e9797fba21 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1850,6 +1850,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, size_t val_count = val_len / val_bytes; size_t chunk_count, chunk_bytes; size_t chunk_regs = val_count; + size_t max_data = map->max_raw_write - map->format.reg_bytes - + map->format.pad_bytes; int ret, i; if (!val_count) @@ -1857,8 +1859,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, if (map->use_single_write) chunk_regs = 1; - else if (map->max_raw_write && val_len > map->max_raw_write) - chunk_regs = map->max_raw_write / val_bytes; + else if (map->max_raw_write && val_len > max_data) + chunk_regs = max_data / val_bytes; chunk_count = val_count / chunk_regs; chunk_bytes = chunk_regs * val_bytes; -- 2.39.2

2 years

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[PATCH AUTOSEL 5.15 01/10] regmap: Account for register length when chunking

by Sasha Levin

From: Jim Wylder <jwylder(a)google.com> [ Upstream commit 3981514180c987a79ea98f0ae06a7cbf58a9ac0f ] Currently, when regmap_raw_write() splits the data, it uses the max_raw_write value defined for the bus. For any bus that includes the target register address in the max_raw_write value, the chunked transmission will always exceed the maximum transmission length. To avoid this problem, subtract the length of the register and the padding from the maximum transmission. Signed-off-by: Jim Wylder <jwylder(a)google.com Link: https://lore.kernel.org/r/20230517152444.3690870-2-jwylder@google.com Signed-off-by: Mark Brown <broonie(a)kernel.org Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/base/regmap/regmap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index f7811641ed5ae..05410c69a3da6 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2041,6 +2041,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, size_t val_count = val_len / val_bytes; size_t chunk_count, chunk_bytes; size_t chunk_regs = val_count; + size_t max_data = map->max_raw_write - map->format.reg_bytes - + map->format.pad_bytes; int ret, i; if (!val_count) @@ -2048,8 +2050,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, if (map->use_single_write) chunk_regs = 1; - else if (map->max_raw_write && val_len > map->max_raw_write) - chunk_regs = map->max_raw_write / val_bytes; + else if (map->max_raw_write && val_len > max_data) + chunk_regs = max_data / val_bytes; chunk_count = val_count / chunk_regs; chunk_bytes = chunk_regs * val_bytes; -- 2.39.2

2 years

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[PATCH AUTOSEL 6.3 01/19] regmap: Account for register length when chunking

by Sasha Levin

From: Jim Wylder <jwylder(a)google.com> [ Upstream commit 3981514180c987a79ea98f0ae06a7cbf58a9ac0f ] Currently, when regmap_raw_write() splits the data, it uses the max_raw_write value defined for the bus. For any bus that includes the target register address in the max_raw_write value, the chunked transmission will always exceed the maximum transmission length. To avoid this problem, subtract the length of the register and the padding from the maximum transmission. Signed-off-by: Jim Wylder <jwylder(a)google.com Link: https://lore.kernel.org/r/20230517152444.3690870-2-jwylder@google.com Signed-off-by: Mark Brown <broonie(a)kernel.org Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/base/regmap/regmap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index d2a54eb0efd9b..f9f38ab3f030e 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2064,6 +2064,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, size_t val_count = val_len / val_bytes; size_t chunk_count, chunk_bytes; size_t chunk_regs = val_count; + size_t max_data = map->max_raw_write - map->format.reg_bytes - + map->format.pad_bytes; int ret, i; if (!val_count) @@ -2071,8 +2073,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, if (map->use_single_write) chunk_regs = 1; - else if (map->max_raw_write && val_len > map->max_raw_write) - chunk_regs = map->max_raw_write / val_bytes; + else if (map->max_raw_write && val_len > max_data) + chunk_regs = max_data / val_bytes; chunk_count = val_count / chunk_regs; chunk_bytes = chunk_regs * val_bytes; -- 2.39.2

2 years

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[PATCH] wifi: iwlwifi: pcie: Handle SO-F device for PCI id 0x7AF0

by gregory.greenman＠intel.com

From: Mukesh Sisodiya <mukesh.sisodiya(a)intel.com> Add support for AX1690i and AX1690s devices with PCIE id 0x7AF0. Cc: stable(a)vger.kernel.org # 6.1+ Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya(a)intel.com> Signed-off-by: Gregory Greenman <gregory.greenman(a)intel.com> --- drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c index 4ba4dd881c2e..44ef4724cd81 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c @@ -550,6 +550,8 @@ static const struct iwl_dev_info iwl_dev_info_table[] = { IWL_DEV_INFO(0x54F0, 0x1692, iwlax411_2ax_cfg_so_gf4_a0, iwl_ax411_killer_1690i_name), IWL_DEV_INFO(0x7A70, 0x1691, iwlax411_2ax_cfg_so_gf4_a0, iwl_ax411_killer_1690s_name), IWL_DEV_INFO(0x7A70, 0x1692, iwlax411_2ax_cfg_so_gf4_a0, iwl_ax411_killer_1690i_name), + IWL_DEV_INFO(0x7AF0, 0x1691, iwlax411_2ax_cfg_so_gf4_a0, iwl_ax411_killer_1690s_name), + IWL_DEV_INFO(0x7AF0, 0x1692, iwlax411_2ax_cfg_so_gf4_a0, iwl_ax411_killer_1690i_name), IWL_DEV_INFO(0x271C, 0x0214, iwl9260_2ac_cfg, iwl9260_1_name), IWL_DEV_INFO(0x7E40, 0x1691, iwl_cfg_ma_a0_gf4_a0, iwl_ax411_killer_1690s_name), -- 2.38.1

2 years

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patch "meson saradc: fix clock divider mask length" added to char-misc-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled meson saradc: fix clock divider mask length to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-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 c57fa0037024c92c2ca34243e79e857da5d2c0a9 Mon Sep 17 00:00:00 2001 From: George Stark <gnstark(a)sberdevices.ru> Date: Tue, 6 Jun 2023 19:53:57 +0300 Subject: meson saradc: fix clock divider mask length According to the datasheets of supported meson SoCs length of ADC_CLK_DIV field is 6-bit. Although all supported SoCs have the register with that field documented later SoCs use external clock rather than ADC internal clock so this patch affects only meson8 family (S8* SoCs). Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs") Signed-off-by: George Stark <GNStark(a)sberdevices.ru> Reviewed-by: Andy Shevchenko <andy.shevchenko(a)gmail.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> Link: https://lore.kernel.org/r/20230606165357.42417-1-gnstark@sberdevices.ru Cc: <stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/meson_saradc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 18937a262af6..af6bfcc19075 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -72,7 +72,7 @@ #define MESON_SAR_ADC_REG3_PANEL_DETECT_COUNT_MASK GENMASK(20, 18) #define MESON_SAR_ADC_REG3_PANEL_DETECT_FILTER_TB_MASK GENMASK(17, 16) #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_SHIFT 10 - #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH 5 + #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH 6 #define MESON_SAR_ADC_REG3_BLOCK_DLY_SEL_MASK GENMASK(9, 8) #define MESON_SAR_ADC_REG3_BLOCK_DLY_MASK GENMASK(7, 0) -- 2.41.0

2 years

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patch "iio: adc: ad7192: Fix internal/external clock selection" added to char-misc-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7192: Fix internal/external clock selection to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-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 f7d9e21dd274b97dc0a8dbc136a2ea8506063a96 Mon Sep 17 00:00:00 2001 From: Fabrizio Lamarque <fl.scratchpad(a)gmail.com> Date: Tue, 30 May 2023 09:53:08 +0200 Subject: iio: adc: ad7192: Fix internal/external clock selection Fix wrong selection of internal clock when mclk is defined. Resolve a logical inversion introduced in c9ec2cb328e3. Fixes: c9ec2cb328e3 ("iio: adc: ad7192: use devm_clk_get_optional() for mclk") Signed-off-by: Fabrizio Lamarque <fl.scratchpad(a)gmail.com> Reviewed-by: Nuno Sa <nuno.sa(a)analog.com> Cc: <Stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20230530075311.400686-3-fl.scratchpad@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/ad7192.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 55a26dbd6108..8685e0b58a83 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -367,7 +367,7 @@ static int ad7192_of_clock_select(struct ad7192_state *st) clock_sel = AD7192_CLK_INT; /* use internal clock */ - if (st->mclk) { + if (!st->mclk) { if (of_property_read_bool(np, "adi,int-clock-output-enable")) clock_sel = AD7192_CLK_INT_CO; } else { -- 2.41.0

2 years

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patch "dt-bindings: iio: ad7192: Add mandatory reference voltage source" added to char-misc-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled dt-bindings: iio: ad7192: Add mandatory reference voltage source to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-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 c6dab7245604862d86f0b6d764919f470584d24f Mon Sep 17 00:00:00 2001 From: Fabrizio Lamarque <fl.scratchpad(a)gmail.com> Date: Tue, 30 May 2023 09:53:10 +0200 Subject: dt-bindings: iio: ad7192: Add mandatory reference voltage source Add required reference voltage (VRef) supply regulator. AD7192 requires three independent voltage sources: DVdd, AVdd and VRef (on REFINx pin pairs). Fixes: b581f748cce0 ("staging: iio: adc: ad7192: move out of staging") Signed-off-by: Fabrizio Lamarque <fl.scratchpad(a)gmail.com> Acked-by: Conor Dooley <conor.dooley(a)microchip.com> Cc: <Stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20230530075311.400686-5-fl.scratchpad@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml index d521d516088b..16def2985ab4 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml @@ -47,6 +47,9 @@ properties: avdd-supply: description: AVdd voltage supply + vref-supply: + description: VRef voltage supply + adi,rejection-60-Hz-enable: description: | This bit enables a notch at 60 Hz when the first notch of the sinc @@ -89,6 +92,7 @@ required: - interrupts - dvdd-supply - avdd-supply + - vref-supply - spi-cpol - spi-cpha @@ -115,6 +119,7 @@ examples: interrupt-parent = <&gpio>; dvdd-supply = <&dvdd>; avdd-supply = <&avdd>; + vref-supply = <&vref>; adi,refin2-pins-enable; adi,rejection-60-Hz-enable; -- 2.41.0

2 years

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patch "iio: adc: ad7192: Fix null ad7192_state pointer access" added to char-misc-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7192: Fix null ad7192_state pointer access to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-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 9e58e3a6f8e1c483c86a04903b7b7aa0923e4426 Mon Sep 17 00:00:00 2001 From: Fabrizio Lamarque <fl.scratchpad(a)gmail.com> Date: Tue, 30 May 2023 09:53:07 +0200 Subject: iio: adc: ad7192: Fix null ad7192_state pointer access Pointer to indio_dev structure is obtained via spi_get_drvdata() at the beginning of function ad7192_setup(), but the spi->dev->driver_data member is not initialized, hence a NULL pointer is returned. Fix by changing ad7192_setup() signature to take pointer to struct iio_dev, and get ad7192_state pointer via st = iio_priv(indio_dev); Fixes: bd5dcdeb3fd0 ("iio: adc: ad7192: convert to device-managed functions") Signed-off-by: Fabrizio Lamarque <fl.scratchpad(a)gmail.com> Reviewed-by: Nuno Sa <nuno.sa(a)analog.com> Cc: <Stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20230530075311.400686-2-fl.scratchpad@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/ad7192.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 99bb604b78c8..55a26dbd6108 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -380,9 +380,9 @@ static int ad7192_of_clock_select(struct ad7192_state *st) return clock_sel; } -static int ad7192_setup(struct ad7192_state *st, struct device_node *np) +static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np) { - struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi); + struct ad7192_state *st = iio_priv(indio_dev); bool rej60_en, refin2_en; bool buf_en, bipolar, burnout_curr_en; unsigned long long scale_uv; @@ -1069,7 +1069,7 @@ static int ad7192_probe(struct spi_device *spi) } } - ret = ad7192_setup(st, spi->dev.of_node); + ret = ad7192_setup(indio_dev, spi->dev.of_node); if (ret) return ret; -- 2.41.0

2 years

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