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Dmitry Osipenko c4b62a7e52 dmaengine: tegra-apb: Prevent race conditions on channel's freeing 
[ Upstream commit 8e84172e372bdca20c305d92d51d33640d2da431 ]

It's incorrect to check the channel's "busy" state without taking a lock.
That shouldn't cause any real troubles, nevertheless it's always better
not to have any race conditions in the code.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200209163356.6439-5-digetx@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:17:36 +02:00
..
bestcomm
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dw
dmaengine: dw: Initialize channel before each transfer
2020-07-22 09:33:02 +02:00
dw-axi-dmac
dmaengine fixes for v5.2-rc4
2019-06-08 12:46:31 -07:00
dw-edma
dmaengine: dw-edma: Fix scatter-gather address calculation
2020-09-09 19:12:35 +02:00
hsu
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
ioat
dmaengine: ioat setting ioat timeout as module parameter
2020-07-29 10:18:37 +02:00
ipu
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mediatek
dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq fails
2020-10-01 13:17:18 +02:00
ppc4xx
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
2019-05-21 11:28:40 +02:00
qcom
dmaengine: qcom: bam_dma: Fix resource leak
2019-10-18 13:27:58 +05:30
sh
dmaengine: sh: usb-dmac: set tx_result parameters
2020-07-22 09:33:00 +02:00
ti
dmaengine: ti: edma: fix missed failure handling
2020-01-26 10:01:08 +01:00
xilinx
dmaengine: zynqmp_dma: fix burst length configuration
2020-10-01 13:17:28 +02:00
acpi-dma.c
dmaengine: acpi: Put the CSRT table after using it
2020-09-17 13:47:45 +02:00
altera-msgdma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
amba-pl08x.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
at_hdmac_regs.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
at_hdmac.c
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
2020-09-09 19:12:23 +02:00
at_xdmac.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
bcm2835-dma.c
dmaengine updates for v5.4-rc1
2019-09-17 19:04:40 -07:00
bcm-sba-raid.c
dmaengine: bcm-sba-raid: no need to check return value of debugfs_create functions
2019-06-14 11:14:58 +05:30
coh901318_lli.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
coh901318.c
dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
2020-03-12 13:00:30 +01:00
coh901318.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
dma-axi-dmac.c
dmaengine: axi-dmac: add a check for devm_regmap_init_mmio
2020-02-14 16:34:19 -05:00
dma-jz4780.c
drivers/dma/dma-jz4780: Fix race condition between probe and irq handler
2020-09-17 13:47:46 +02:00
dmaengine.c
dmaengine: Store module owner in dma_device struct
2020-02-24 08:36:40 +01:00
dmaengine.h
…
dmatest.c
dmaengine: dmatest: stop completed threads when running without set channel
2020-07-22 09:33:02 +02:00
ep93xx_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
fsl_raid.c
…
fsl_raid.h
…
fsl-edma-common.c
dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu
2020-07-29 10:18:37 +02:00
fsl-edma-common.h
dmaengine: fsl-edma-common: correct DSIZE_32BYTE
2020-07-22 09:33:15 +02:00
fsl-edma.c
dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler
2020-07-22 09:33:15 +02:00
fsl-qdma.c
dmaengine: fsl-qdma: fix duplicated argument to &&
2020-02-24 08:36:29 +01:00
fsldma.c
dmaengine: fsldma: Mark expected switch fall-through
2019-08-20 19:42:34 -05:00
fsldma.h
fsldma: fix very broken 32-bit ppc ioread64 functionality
2020-09-09 19:12:22 +02:00
idma64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +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: Mark expected switch fall-through
2019-07-31 20:49:04 +05:30
imx-sdma.c
dmaengine: imx-sdma: Fix the event id check to include RX event for UART6
2020-03-12 13:00:23 +01:00
iop-adma.c
dmaengine updates for v5.4-rc1
2019-09-17 19:04:40 -07:00
iop-adma.h
dma: iop-adma: allow building without platform headers
2019-08-14 15:36:22 +02:00
k3dma.c
dmaengine: k3dma: Avoid null pointer traversal
2020-01-17 19:49:06 +01:00
Kconfig
Main MIPS changes for v5.4:
2019-09-22 09:30:30 -07:00
lpc18xx-dmamux.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Makefile
dma: Drop JZ4740 driver
2019-07-30 10:41:53 -07:00
mcf-edma.c
dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler
2020-07-22 09:33:15 +02:00
mic_x100_dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
mic_x100_dma.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290
2019-06-05 17:36:38 +02:00
mmp_pdma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mmp_tdma.c
dmaengine: mmp_tdma: Reset channel error on release
2020-05-20 08:20:14 +02:00
moxart-dma.c
…
mpc512x_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
2019-05-21 11:28:40 +02:00
mv_xor_v2.c
dmaengine: mv_xor_v2: Fix -Wshift-negative-value
2019-08-20 17:06:36 +05:30
mv_xor.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
mv_xor.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
mxs-dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
nbpfaxi.c
dmaengine: nbpfaxi: Use dev_get_drvdata()
2019-04-29 10:47:15 +05:30
of-dma.c
dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
2020-09-09 19:12:23 +02:00
owl-dma.c
dmaengine: owl: Use correct lock in owl_dma_get_pchan()
2020-05-27 17:46:43 +02:00
pch_dma.c
dmaengine: pch_dma.c: Avoid data race between probe and irq handler
2020-05-20 08:20:13 +02:00
pl330.c
dmaengine: pl330: Fix burst length if burst size is smaller than bus width
2020-09-09 19:12:25 +02:00
pxa_dma.c
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
s3c24xx-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
sa11x0-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sirf-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
2019-05-21 11:28:40 +02:00
sprd-dma.c
dmaengine: sprd: Fix the possible memory leak issue
2019-10-15 15:47:24 +05:30
st_fdma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
st_fdma.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
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
ste_dma40.c
dmaengine: ste_dma40: fix unneeded variable warning
2019-07-22 20:58:33 +05:30
stm32-dma.c
dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all
2020-10-01 13:17:36 +02:00
stm32-dmamux.c
dmaengine: stm32-dmamux: Switch to use device_property_count_u32()
2019-07-29 12:25:21 +05:30
stm32-mdma.c
dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all
2020-10-01 13:17:35 +02:00
sun4i-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
sun6i-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
tegra20-apb-dma.c
dmaengine: tegra-apb: Prevent race conditions on channel's freeing
2020-10-01 13:17:36 +02:00
tegra210-adma.c
dmaengine: tegra210-adma: Fix runtime PM imbalance on error
2020-07-29 10:18:36 +02:00
timb_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
TODO
…
txx9dmac.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
txx9dmac.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
uniphier-mdmac.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
virt-dma.c
dmaengine: virt-dma: Fix access after free in vchan_complete()
2020-01-09 10:20:00 +01:00
virt-dma.h
dmaengine updates for v5.3-rc1
2019-07-17 09:55:43 -07:00
xgene-dma.c
dmaengine: Remove dev_err() usage after platform_get_irq()
2019-07-31 20:50:53 +05:30
zx_dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00