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[PATCH] ASoC: wcd934x: fix error handling in wcd934x_codec_parse_data()

by Ma Ke

wcd934x_codec_parse_data() contains a device reference count leak in of_slim_get_device() where device_find_child() increases the reference count of the device but this reference is not properly decreased in the success path. Add put_device() in wcd934x_codec_parse_data(), which ensures that the reference count of the device is correctly managed. Calling path: of_slim_get_device() -> of_find_slim_device() -> device_find_child(). As comment of device_find_child() says, 'NOTE: you will need to drop the reference with put_device() after use.'. Found by code review. Cc: stable(a)vger.kernel.org Fixes: a61f3b4f476e ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- sound/soc/codecs/wcd934x.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c index 1bb7e1dc7e6b..9ffa65329934 100644 --- a/sound/soc/codecs/wcd934x.c +++ b/sound/soc/codecs/wcd934x.c @@ -5849,10 +5849,13 @@ static int wcd934x_codec_parse_data(struct wcd934x_codec *wcd) slim_get_logical_addr(wcd->sidev); wcd->if_regmap = regmap_init_slimbus(wcd->sidev, &wcd934x_ifc_regmap_config); - if (IS_ERR(wcd->if_regmap)) + if (IS_ERR(wcd->if_regmap)) { + put_device(&wcd->sidev->dev); return dev_err_probe(dev, PTR_ERR(wcd->if_regmap), "Failed to allocate ifc register map\n"); + } + put_device(&wcd->sidev->dev); of_property_read_u32(dev->parent->of_node, "qcom,dmic-sample-rate", &wcd->dmic_sample_rate); -- 2.17.1

2 months, 2 weeks

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[PATCH v2] RDMA/rxe: Fix race in do_task() when draining

by Gui-Dong Han

When do_task() exhausts its iteration budget (!ret), it sets the state to TASK_STATE_IDLE to reschedule, without a secondary check on the current task->state. This can overwrite the TASK_STATE_DRAINING state set by a concurrent call to rxe_cleanup_task() or rxe_disable_task(). While state changes are protected by a spinlock, both rxe_cleanup_task() and rxe_disable_task() release the lock while waiting for the task to finish draining in the while(!is_done(task)) loop. The race occurs if do_task() hits its iteration limit and acquires the lock in this window. The cleanup logic may then proceed while the task incorrectly reschedules itself, leading to a potential use-after-free. This bug was introduced during the migration from tasklets to workqueues, where the special handling for the draining case was lost. Fix this by restoring the original pre-migration behavior. If the state is TASK_STATE_DRAINING when iterations are exhausted, set cont to 1 to force a new loop iteration. This allows the task to finish its work, so that a subsequent iteration can reach the switch statement and correctly transition the state to TASK_STATE_DRAINED, stopping the task as intended. Fixes: 9b4b7c1f9f54 ("RDMA/rxe: Add workqueue support for rxe tasks") Cc: stable(a)vger.kernel.org Reviewed-by: Zhu Yanjun <yanjun.zhu(a)linux.dev> Signed-off-by: Gui-Dong Han <hanguidong02(a)gmail.com> --- v2: * Rewrite commit message for clarity. Thanks to Zhu Yanjun for the review. --- drivers/infiniband/sw/rxe/rxe_task.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_task.c b/drivers/infiniband/sw/rxe/rxe_task.c index 6f8f353e9583..f522820b950c 100644 --- a/drivers/infiniband/sw/rxe/rxe_task.c +++ b/drivers/infiniband/sw/rxe/rxe_task.c @@ -132,8 +132,12 @@ static void do_task(struct rxe_task *task) * yield the cpu and reschedule the task */ if (!ret) { - task->state = TASK_STATE_IDLE; - resched = 1; + if (task->state != TASK_STATE_DRAINING) { + task->state = TASK_STATE_IDLE; + resched = 1; + } else { + cont = 1; + } goto exit; } -- 2.25.1

2 months, 2 weeks

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Fwd: [Bug 220457] Using -march=native on linux 6.16.1 causes: can't find jump dest instruction error.

by SMF Linux

https://bugzilla.kernel.org/show_bug.cgi?id=220457 Refined my work around to: KBUILD_CFLAGS += -march=native -mno-tbm KBUILD_RUSTFLAGS += -Ctarget-cpu=native Ctarget-feature=-tbm

2 months, 2 weeks

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[PATCH] irqchip/sifive-plic: avoid interrupt ID 0 handling during suspend/resume

by Lucas Zampieri

To: linux-kernel(a)vger.kernel.org Cc: Paul Walmsley <paul.walmsley(a)sifive.com> Cc: Samuel Holland <samuel.holland(a)sifive.com> Cc: stable(a)vger.kernel.org Cc: linux-riscv(a)lists.infradead.org Cc: Thomas Gleixner <tglx(a)linutronix.de> According to the PLIC specification[1], global interrupt sources are assigned small unsigned integer identifiers beginning at the value 1. An interrupt ID of 0 is reserved to mean "no interrupt". The current plic_irq_resume() and plic_irq_suspend() functions incorrectly starts the loop from index 0, which could access the reserved interrupt ID 0 register space. This fix changes the loop to start from index 1, skipping the reserved interrupt ID 0 as per the PLIC specification. This prevents potential undefined behavior when accessing the reserved register space during suspend/resume cycles. Fixes: e80f0b6a2cf3 ("irqchip/irq-sifive-plic: Add syscore callbacks for hibernation") Co-developed-by: Jia Wang <wangjia(a)ultrarisc.com> Signed-off-by: Jia Wang <wangjia(a)ultrarisc.com> Signed-off-by: Lucas Zampieri <lzampier(a)redhat.com> [1] https://github.com/riscv/riscv-plic-spec/releases/tag/1.0.0 --- drivers/irqchip/irq-sifive-plic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index bf69a4802b71..1c2b4d2575ac 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -252,7 +252,7 @@ static int plic_irq_suspend(void) priv = per_cpu_ptr(&plic_handlers, smp_processor_id())->priv; - for (i = 0; i < priv->nr_irqs; i++) { + for (i = 1; i < priv->nr_irqs; i++) { __assign_bit(i, priv->prio_save, readl(priv->regs + PRIORITY_BASE + i * PRIORITY_PER_ID)); } @@ -283,7 +283,7 @@ static void plic_irq_resume(void) priv = per_cpu_ptr(&plic_handlers, smp_processor_id())->priv; - for (i = 0; i < priv->nr_irqs; i++) { + for (i = 1; i < priv->nr_irqs; i++) { index = BIT_WORD(i); writel((priv->prio_save[index] & BIT_MASK(i)) ? 1 : 0, priv->regs + PRIORITY_BASE + i * PRIORITY_PER_ID); -- 2.51.0

2 months, 2 weeks

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New September Order. 02318 Sunday, September 21, 2025 at 06:25:09 AM

by Info - Albinayah 086

Hi Stable, Please provide a quote for your products: Include: 1.Pricing (per unit) 2.Delivery cost & timeline 3.Quote expiry date Deadline: September Thanks! Kamal Prasad Albinayah Trading

2 months, 2 weeks

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Qualcomm Snapdragon <SM6375>

by Alan Ye

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2 months, 2 weeks

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2 months, 2 weeks

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[PATCH v2] mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call()

by Akinobu Mita

The callback return value is ignored in damon_sysfs_damon_call(), which means that it is not possible to detect invalid user input when writing commands such as 'commit' to /sys/kernel/mm/damon/admin/kdamonds/<K>/state. Fix it. Signed-off-by: Akinobu Mita <akinobu.mita(a)gmail.com> Fixes: f64539dcdb87 ("mm/damon/sysfs: use damon_call() for update_schemes_stats") Cc: <stable(a)vger.kernel.org> # v6.14.x Reviewed-by: SeongJae Park <sj(a)kernel.org> --- mm/damon/sysfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index fe4e73d0ebbb..3ffe3a77b5db 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1627,12 +1627,14 @@ static int damon_sysfs_damon_call(int (*fn)(void *data), struct damon_sysfs_kdamond *kdamond) { struct damon_call_control call_control = {}; + int err; if (!kdamond->damon_ctx) return -EINVAL; call_control.fn = fn; call_control.data = kdamond; - return damon_call(kdamond->damon_ctx, &call_control); + err = damon_call(kdamond->damon_ctx, &call_control); + return err ? err : call_control.return_code; } struct damon_sysfs_schemes_walk_data { -- 2.43.0

2 months, 2 weeks

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[PATCH v2] crypto: aspeed - Fix dma_unmap_sg() direction

by Thomas Fourier

It seems like everywhere in this file, when the request is not bidirectionala, req->src is mapped with DMA_TO_DEVICE and req->dst is mapped with DMA_FROM_DEVICE. Fixes: 62f58b1637b7 ("crypto: aspeed - add HACE crypto driver") Cc: <stable(a)vger.kernel.org> Signed-off-by: Thomas Fourier <fourier.thomas(a)gmail.com> --- v1->v2: - fix confusion between dst and src in commit message drivers/crypto/aspeed/aspeed-hace-crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/aspeed/aspeed-hace-crypto.c b/drivers/crypto/aspeed/aspeed-hace-crypto.c index a72dfebc53ff..fa201dae1f81 100644 --- a/drivers/crypto/aspeed/aspeed-hace-crypto.c +++ b/drivers/crypto/aspeed/aspeed-hace-crypto.c @@ -346,7 +346,7 @@ static int aspeed_sk_start_sg(struct aspeed_hace_dev *hace_dev) } else { dma_unmap_sg(hace_dev->dev, req->dst, rctx->dst_nents, - DMA_TO_DEVICE); + DMA_FROM_DEVICE); dma_unmap_sg(hace_dev->dev, req->src, rctx->src_nents, DMA_TO_DEVICE); } -- 2.43.0

2 months, 2 weeks

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2 months, 2 weeks

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