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Eric Pilmore 8ae2113702 dmaengine: ptdma: check for null desc before calling pt_cmd_callback 
[ Upstream commit 928469986171a6f763b34b039427f5667ba3fd50 ]

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: 6fa7e0e836e2 ("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 09:33:39 +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 09:33:39 +01:00
dw-edma
dmaengine: dw-edma: Fix readq_ch() return value truncation
2023-03-10 09:33:38 +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 09:33:28 +01:00
ioat
dmaengine: ioat: remove unused declarations in dma.h
2022-09-29 22:46:09 +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
2023-01-24 07:24:39 +01:00
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 09:33:39 +01:00
qcom
dmaengine: qcom: gpi: Set link_rx bit on GO TRE for rx operation
2023-02-01 08:34:02 +01:00
sf-pdma
dmaengine: sf-pdma: pdma_desc memory leak fix
2023-03-10 09:33:39 +01:00
sh
dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
2022-09-29 21:14:32 +05:30
ti
dmaengine: ti: k3-udma: Do conditional decrement of UDMA_CHAN_RT_PEER_BCNT_REG
2023-02-01 08:34:02 +01:00
xilinx
dmaengine: xilinx_dma: call of_node_put() when breaking out of for_each_child_of_node()
2023-02-01 08:34:24 +01:00
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: 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
dmaengine: apple-admac: Allocate cache SRAM to channels
2022-12-31 13:32:46 +01:00
at_hdmac_regs.h
dmaengine: at_hdmac: Fix at_lli struct definition
2022-11-08 10:43:56 +05:30
at_hdmac.c
dmaengine: at_hdmac: Check return code of dma_async_device_register
2022-11-08 10:43:57 +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
bcm2835-dma.c
dmaengine: bcm2835: Drop local dma_parms
2020-09-11 17:42:12 +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
dma-axi-dmac.c
dmaengine: axi-dmac: check cache coherency register
2022-07-26 22:05:20 +05:30
dma-jz4780.c
dmaengine: jz4780: fix typo in comment
2022-07-06 10:51:43 +05:30
dmaengine.c
dmaengine: Fix double increment of client_count in dma_chan_get()
2023-02-01 08:34:23 +01:00
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_raid.c
dmaengine: fsl: remove bad channel update
2020-10-05 09:59:17 +05:30
fsl_raid.h
…
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
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: Dump regs to debugfs
2022-09-04 22:42:35 +05:30
idma64.c
dmaengine: idma64: Switch to use __maybe_unused instead of ifdeffery
2020-11-09 17:21:05 +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
2023-02-06 08:06:33 +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: HISI_DMA should depend on ARCH_HISI
2023-03-10 09:33:28 +01:00
lpc18xx-dmamux.c
…
Makefile
dmaengine: apple-admac: Add Apple ADMAC driver
2022-06-09 12:20:20 +05:30
mcf-edma.c
dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler
2020-06-24 13:06:15 +05:30
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
dmaengine: mmp: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
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_v2.c
dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()
2022-11-08 10:43:56 +05:30
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
…
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: virt-dma: Fix double word in comments
2022-09-29 12:22:27 +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_ll.c
…
ste_dma40_ll.h
…
ste_dma40.c
dmaengine: ste_dma40: fix typo in comment
2022-07-06 10:54:08 +05:30
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()
2023-02-01 08:34:24 +01:00
tegra210-adma.c
dmaengine: tegra210-adma: fix global intr clear
2023-01-24 07:24:39 +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
…
txx9dmac.c
dmaengine: txx9dmac: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
txx9dmac.h
…
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
2022-01-03 17:49:37 +05:30
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
…
xgene-dma.c
dmaengine: xgene: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30