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linux-stable/drivers/dma
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Eric Pilmore 5bba023b12 dmaengine: ptdma: check for null desc before calling pt_cmd_callback 
[ Upstream commit 9284699861 ]

Resolves a panic that can occur on AMD systems, typically during host
shutdown, after the PTDMA driver had been exercised. The issue was
the pt_issue_pending() function is mistakenly assuming that there will
be at least one descriptor in the Submitted queue when the function
is called. However, it is possible that both the Submitted and Issued
queues could be empty, which could result in pt_cmd_callback() being
mistakenly called with a NULL pointer.
Ref: Bugzilla Bug 216856.

Fixes: 6fa7e0e836 ("dmaengine: ptdma: fix concurrency issue with multiple dma transfer")
Signed-off-by: Eric Pilmore <epilmore@gigaio.com>
Link: https://lore.kernel.org/r/20230210075142.58253-1-epilmore@gigaio.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-10 09:28:57 +01:00
..
bestcomm treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
dw dmaengine updates for v6.0-rc1 2022-08-04 18:44:38 -07:00
dw-axi-dmac dmaengine: dw-axi-dmac: Do not dereference NULL structure 2023-03-10 09:28:57 +01:00
dw-edma dmaengine: dw-edma: Fix readq_ch() return value truncation 2023-03-10 09:28:56 +01:00
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: Drop comma after SoC match table sentinel 2022-03-11 15:47:39 +05:30
hsu dmaengine: hsu: Include headers we are direct user of 2022-09-04 22:49:35 +05:30
idxd dmaengine: idxd: Set traffic class values in GRPCFG on DSA 2.0 2023-03-10 09:28:46 +01:00
ioat dmaengine: ioat: Fix spelling mistake "idel" -> "idle" 2022-10-19 18:56:57 +05:30
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 2023-01-18 15:32:16 +05:30
mediatek dmaengine: mediatek: mtk-hsdma: Fix typo 'the the' in comment 2022-07-26 22:06:05 +05:30
ppc4xx treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE 2022-06-10 14:51:37 +02:00
ptdma dmaengine: ptdma: check for null desc before calling pt_cmd_callback 2023-03-10 09:28:57 +01:00
qcom dmaengine: qcom: gpi: Set link_rx bit on GO TRE for rx operation 2022-12-28 12:26:11 +05:30
sf-pdma dmaengine: sf-pdma: pdma_desc memory leak fix 2023-03-10 09:28:57 +01:00
sh dmaengine: sh: Remove unused shdma-arm.h 2022-11-04 20:12:41 +05:30
ti dmaengine: ti: k3-udma: Do conditional decrement of UDMA_CHAN_RT_PEER_BCNT_REG 2022-12-28 16:34:14 +05:30
xilinx dmaengine: xilinx_dma: call of_node_put() when breaking out of for_each_child_of_node() 2023-01-18 22:16:04 +05:30
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: Fixed some inconsistent function name descriptions 2022-07-06 22:00:06 +05:30
amba-pl08x.c dmaengine: pl08x: Fix double word 2022-09-29 12:24:16 +05:30
apple-admac.c Merge branch 'fixes' into next 2022-11-11 12:14:26 +05:30
at_hdmac.c dmaengine: at_hdmac: Convert driver to use virt-dma 2022-11-11 12:15:09 +05:30
at_xdmac.c dmaengine: at_xdmac: Replace two if statements with only one with two conditions 2022-09-05 12:01:55 +05:30
bcm-sba-raid.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2) 2022-06-10 14:51:35 +02:00
bcm2835-dma.c
dma-axi-dmac.c dmaengine: axi-dmac: check cache coherency register 2022-07-26 22:05:20 +05:30
dma-jz4780.c dmaengine: JZ4780: Add support for the JZ4755. 2022-10-19 19:13:16 +05:30
dmaengine.c dmaengine: Fix double increment of client_count in dma_chan_get() 2023-01-18 17:36:49 +05:30
dmaengine.h dmaengine: dmaengine_desc_callback_valid(): Check for callback_result 2021-10-25 09:42:56 +05:30
dmatest.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
ep93xx_dma.c dmaengine: ep93xx: Fix typo in comments 2022-07-01 21:50:23 +05:30
fsl-edma-common.c dmaengine: fsl-edma: remove redundant assignment to pointer last_sg 2022-07-01 22:09:16 +05:30
fsl-edma-common.h dmaengine: fsl-edma: support edma memcpy 2021-10-28 22:56:24 +05:30
fsl-edma.c dmaengine: fsl-edma: support edma memcpy 2021-10-28 22:56:24 +05:30
fsl-qdma.c dmaengine: fsl-qdma: check dma_set_mask return value 2021-05-10 19:51:03 +05:30
fsl_raid.c
fsl_raid.h
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
hisi_dma.c dmaengine: hisilicon: Dump regs to debugfs 2022-09-04 22:42:35 +05:30
idma64.c dmaengine: idma64: Make idma64_remove() return void 2022-10-19 19:17:35 +05:30
idma64.h
img-mdc-dma.c
imx-dma.c dmaengine: imx-dma: Cast of_device_get_match_data() with (uintptr_t) 2022-07-21 18:08:35 +05:30
imx-sdma.c dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init 2023-01-18 17:44:29 +05:30
k3dma.c dmaengine: k3dma: use the correct HiSilicon copyright 2021-04-12 17:14:53 +05:30
Kconfig dmaengine: HISI_DMA should depend on ARCH_HISI 2023-03-10 09:28:46 +01:00
lpc18xx-dmamux.c
Makefile dmaengine: Revert "dmaengine: remove s3c24xx driver" 2022-12-02 17:11:50 +05:30
mcf-edma.c
milbeaut-hdmac.c dmaengine: milbeaut-hdmac: Prefer kcalloc over open coded arithmetic 2021-10-25 12:12:13 +05:30
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: mmp: deprecate '#dma-channels' 2022-05-19 22:53:46 +05:30
mmp_tdma.c
moxart-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
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: drop of_match_ptr from of_device_id table 2020-11-24 23:02:20 +05:30
mv_xor.h
mv_xor_v2.c dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove() 2022-11-08 10:43:56 +05:30
mxs-dma.c dmaengine: mxs: use platform_driver_register 2022-09-29 12:05:20 +05:30
nbpfaxi.c dmaengine: nbpfaxi: Use platform_get_irq_optional() to get the interrupt 2022-04-11 16:26:53 +05:30
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 typo in comment 2022-07-06 10:50:43 +05:30
pch_dma.c dmaengine: pch_dma: Remove usage of the deprecated "pci-dma-compat.h" API 2022-01-08 22:16:44 +05:30
pl330.c dmaengine: pl330: Remove unused flags 2022-09-05 12:01:54 +05:30
plx_dma.c dmaengine: plx_dma: Move spin_lock_bh() to spin_lock() 2022-04-20 15:59:33 +05:30
pxa_dma.c dmaengine: pxa_dma: use platform_get_irq_optional 2022-11-08 10:42:51 +05:30
s3c24xx-dma.c dmaengine: Revert "dmaengine: remove s3c24xx driver" 2022-12-02 17:11:50 +05:30
sa11x0-dma.c dmaengine: sa11x0: Mark PM functions as __maybe_unused 2021-10-26 10:55:07 +05:30
sprd-dma.c dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed 2022-07-26 18:20:49 +05:30
st_fdma.c dmaengine: st_fdma: fix MODULE_ALIAS 2021-12-13 13:18:48 +05:30
st_fdma.h
ste_dma40.c dmaengine: ste_dma40: fix typo in comment 2022-07-06 10:54:08 +05:30
ste_dma40_ll.c
ste_dma40_ll.h
stm32-dma.c dmaengine: stm32-dma: fix potential race between pause and resume 2022-11-08 10:43:56 +05:30
stm32-dmamux.c dmaengine: stm32-dmamux: Simplify code and save a few bytes of memory 2022-09-05 11:52:28 +05:30
stm32-mdma.c dmaengine: stm32-mdma: memset stm32_mdma_chan_config struct before using it 2022-10-19 19:01:19 +05:30
sun4i-dma.c dmaengine: sun4i: Set the maximum segment size 2022-07-05 18:34:26 +05:30
sun6i-dma.c dmaengine: sun6i: Add support for the D1 variant 2022-05-19 23:43:41 +05:30
tegra20-apb-dma.c dmaengine: tegra20-apb: stop checking config->slave_id 2021-12-17 11:23:38 +05:30
tegra186-gpc-dma.c dmaengine: tegra: Fix memory leak in terminate_all() 2023-01-18 22:18:38 +05:30
tegra210-adma.c dmaengine: tegra210-adma: fix global intr clear 2023-01-18 17:34:36 +05:30
timb_dma.c
TODO
txx9dmac.c
txx9dmac.h
uniphier-mdmac.c
uniphier-xdmac.c dmaengine: uniphier-xdmac: Fix type of address variables 2022-01-03 17:49:37 +05:30
virt-dma.c
virt-dma.h
xgene-dma.c