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linux/drivers/dma
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Claudiu Beznea 4829df95da dmaengine: sh: rz-dmac: Protect the driver specific lists 
[ Upstream commit abb863e621 ]

The driver lists (ld_free, ld_queue) are used in
rz_dmac_free_chan_resources(), rz_dmac_terminate_all(),
rz_dmac_issue_pending(), and rz_dmac_irq_handler_thread(), all under
the virtual channel lock. Take the same lock in rz_dmac_prep_slave_sg()
and rz_dmac_prep_dma_memcpy() as well to avoid concurrency issues, since
these functions also check whether the lists are empty and update or
remove list entries.

Fixes: 5000d37042 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC")
Cc: stable@vger.kernel.org
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20260316133252.240348-2-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
[ replaced scoped_guard(spinlock_irqsave) with explicit spin_lock_irqsave/spin_unlock_irqrestore calls ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-04-18 10:33:38 +02:00
..
bestcomm dmaengine: bestcomm: fix system boot lockups 2021-11-18 19:17:16 +01:00
dw dmaengine: dw: Select only supported masters for ACPI devices 2025-01-09 13:28:38 +01:00
dw-axi-dmac Avoid hw_desc array overrun in dw-axi-dmac 2024-07-05 09:14:28 +02:00
dw-edma dmaengine: dw-edma: Set status for callback_result 2025-12-07 06:09:20 +09:00
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: Fix the size of dma pools 2024-02-23 08:54:56 +01:00
hsu dmaengine: hsu: Account transferred bytes 2021-05-31 09:50:39 +05:30
idxd dmaengine: idxd: Fix freeing the allocated ida too late 2026-04-18 10:33:28 +02:00
ioat locking: Introduce __cleanup() based infrastructure 2025-10-19 16:21:51 +02:00
ipu dmaengine: ipu: Fix fall-through warning for Clang 2021-07-13 14:38:47 -05:00
lgm dmaengine: lgm: Move DT parsing after initialization 2023-01-24 07:22:47 +01:00
mediatek dmaengine: mediatek: uart-apdma: Fix above 4G addressing TX/RX 2026-03-04 07:19:45 -05:00
ppc4xx ppc4xx: replace sscanf() by kstrtoul() 2021-07-28 12:40:51 +05:30
ptdma dmaengine: ptdma: use consistent DMA masks 2024-03-06 14:38:48 +00:00
qcom dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config() 2026-02-06 16:41:50 +01:00
sf-pdma dmaengine: sf-pdma: pdma_desc memory leak fix 2023-03-10 09:39:42 +01:00
sh dmaengine: sh: rz-dmac: Protect the driver specific lists 2026-04-18 10:33:38 +02:00
ti dmaengine: ti: k3-udma: fix device leak on udma lookup 2026-02-06 16:41:50 +01:00
xilinx dmaengine: xilinx_dma: Fix reset related timeout with two-channel AXIDMA 2026-04-18 10:33:28 +02:00
acpi-dma.c dmaengine: acpi: Check for errors from acpi_register_gsi() separately 2021-08-06 21:48:11 +05:30
altera-msgdma.c dmaengine: altera-msgdma: make response port optional 2021-07-28 12:25:10 +05:30
amba-pl08x.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
at_hdmac.c dmaengine: at_hdmac: fix device leak on of_dma_xlate() 2026-02-06 16:41:49 +01:00
at_hdmac_regs.h dmaengine: at_hdmac: Fix at_lli struct definition 2022-11-16 09:58:28 +01:00
at_xdmac.c dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset 2025-01-09 13:28:38 +01:00
bcm-sba-raid.c dmaengine: bcm-sba-raid: fix device leak on probe 2026-02-06 16:41:49 +01:00
bcm2835-dma.c dmaengine: bcm2835: Drop local dma_parms 2020-09-11 17:42:12 +05:30
dma-axi-dmac.c dma: dma-axi-dmac: fix SW cyclic transfers 2026-03-04 07:19:45 -05:00
dma-jz4780.c dmaengine: jz4780: Add support for the JZ4760(B) 2021-01-26 22:45:22 +05:30
dmaengine.c dmaengine: fix NULL pointer in channel unregistration function 2024-02-23 08:54:21 +01:00
dmaengine.h dmaengine: dmaengine_desc_callback_valid(): Check for callback_result 2021-11-18 19:17:02 +01:00
dmatest.c dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted" 2025-05-22 14:08:24 +02:00
ep93xx_dma.c dmaengine: ep93xx: Prepare clock before using it 2021-08-02 12:27:10 +05:30
fsl-edma-common.c dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu 2020-07-06 14:49:22 +05:30
fsl-edma-common.h dmaengine: fsl-edma-common: correct DSIZE_32BYTE 2020-07-06 10:24:49 +05:30
fsl-edma.c dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler 2020-06-24 13:05:01 +05:30
fsl-qdma.c dmaengine: fsl-qdma: init irq after reg initialization 2024-03-06 14:38:48 +00:00
fsl_raid.c dmaengine: fsl: remove bad channel update 2020-10-05 09:59:17 +05:30
fsl_raid.h dmaengine: Driver support for FSL RaidEngine device. 2015-04-02 16:10:27 +05:30
fsldma.c dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function 2021-01-12 18:00:39 +05:30
fsldma.h fsldma: fix very broken 32-bit ppc ioread64 functionality 2020-08-29 13:50:56 -07:00
hisi_dma.c dmaengine: hisilicon: Add multi-thread support for a DMA channel 2022-10-26 12:35:08 +02:00
idma64.c dmaengine: idma64: Add check for dma_set_max_seg_size 2024-06-16 13:39:34 +02:00
idma64.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
img-mdc-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
imx-dma.c dmaengine: imx-dma: Cast of_device_get_match_data() with (uintptr_t) 2022-08-17 14:23:56 +02:00
imx-sdma.c dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init 2023-02-06 07:59:00 +01:00
iop-adma.c Merge branch 'topic/tasklet' into next 2020-10-01 10:18:59 +05:30
iop-adma.h treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
k3dma.c dmaengine: k3dma: use the correct HiSilicon copyright 2021-04-12 17:14:53 +05:30
Kconfig dmaengine: tegra210-adma: Update dependency to ARCH_TEGRA 2024-03-26 18:21:25 -04:00
lpc18xx-dmamux.c dmaengine: lpc18xx-dmamux: fix device leak on route allocation 2026-02-06 16:41:50 +01:00
Makefile dmaengine: ptdma: Initial driver for the AMD PTDMA 2021-08-29 19:14:20 +05:30
mcf-edma.c dmaengine: mcf-edma: Fix a potential un-allocated memory access 2023-08-16 18:22:02 +02:00
milbeaut-hdmac.c dmaengine: Replace zero-length array with flexible-array 2020-06-15 23:08:30 -05:00
milbeaut-xdmac.c dmaengine: milbeaut-xdmac: Fix a resource leak in the error handling path of the probe function 2020-12-29 10:08:00 +05:30
mmp_pdma.c dmaengine: pxa/mmp: stop referencing config->slave_id 2022-01-27 11:04:13 +01:00
mmp_tdma.c dmaengine: mmp: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:06 +05:30
moxart-dma.c dmaengine: moxart-dma: remove redundant irqsave and irqrestore in hardIRQ 2020-11-09 17:25:54 +05:30
mpc512x_dma.c dmaengine: mpc512x: Fix fall-through warning for Clang 2021-07-14 11:05:55 -05:00
mv_xor.c dmaengine: mv_xor: match alloc_wc and free_wc 2025-12-07 06:09:20 +09:00
mv_xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mv_xor_v2.c dmaengine: mv_xor_v2: Fix an error code. 2023-05-11 23:00:37 +09:00
mxs-dma.c dmaengine: mxs: use platform_driver_register 2022-10-26 12:34:23 +02:00
nbpfaxi.c dmaengine: nbpfaxi: Add missing check after DMA map 2025-08-28 16:24:11 +02:00
of-dma.c dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available 2021-07-28 12:54:50 +05:30
owl-dma.c dmaengine: owl: fix register access functions 2024-05-02 16:24:49 +02:00
pch_dma.c dmaengine: pch_dma: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:06 +05:30
pl330.c dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state" 2024-05-17 11:50:43 +02:00
plx_dma.c dmaengine: plx_dma: add a missing put_device() on error path 2021-04-12 15:13:51 +05:30
pxa_dma.c dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc() 2023-11-20 11:08:26 +01:00
s3c24xx-dma.c dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too" 2020-01-23 17:03:25 +05:30
sa11x0-dma.c dmaengine: sa11x0: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
sprd-dma.c dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed 2022-08-25 11:40:38 +02:00
st_fdma.c dmaengine: st_fdma: fix MODULE_ALIAS 2021-12-22 09:32:41 +01:00
st_fdma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ste_dma40.c dmaengine: ste_dma40: Fix PM disable depth imbalance in d40_probe 2023-11-08 17:26:45 +01:00
ste_dma40_ll.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
ste_dma40_ll.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
stm32-dma.c dmaengine: stm32-dma: avoid 64-bit division in stm32_dma_get_max_width 2021-11-18 19:17:11 +01:00
stm32-dmamux.c dmaengine: stm32: dmamux: fix device leak on route allocation 2026-02-06 16:42:02 +01:00
stm32-mdma.c dmaengine: stm32-mdma: correct desc prep when channel running 2023-11-28 16:56:31 +00:00
sun4i-dma.c dmaengine: sun4i: Use list_move_tail instead of list_del/list_add_tail 2021-06-07 17:06:38 +05:30
sun6i-dma.c dmaengine: sun6i: Add support for A100 DMA 2020-11-18 16:28:49 +05:30
tegra20-apb-dma.c dmaengine: tegra20: Fix runtime PM imbalance on error 2021-04-12 15:10:44 +05:30
tegra210-adma.c dmaengine: tegra-adma: Fix use-after-free 2026-02-06 16:41:46 +01:00
timb_dma.c dmaengine: timb_dma: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
TODO dmaengine: dw: don't perform DMA when dmaengine_submit is called 2014-07-15 22:14:30 +05:30
txx9dmac.c dmaengine: txx9dmac: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
txx9dmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
uniphier-mdmac.c dmaengine: uniphier-mdmac: replace zero-length array with flexible-array member 2020-02-13 20:15:57 +05:30
uniphier-xdmac.c dmaengine: uniphier-xdmac: Fix type of address variables 2022-01-27 11:05:23 +01:00
virt-dma.c dmaengine: virt-dma: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30
virt-dma.h dmaengine: virt-dma: Add missing locking around list operations 2019-12-26 10:04:18 +05:30
xgene-dma.c dmaengine: xgene: convert tasklets to use new tasklet_setup() API 2020-09-18 12:19:07 +05:30