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Dmitry Osipenko 2bf5461825 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 20:40:08 +02:00
..
bestcomm
dmaengine: NO_IRQ removal from powerpc-only drivers
2016-09-14 18:57:38 +05:30
dw
dmaengine: dw: platform: Switch to acpi_dma_controller_register()
2020-01-29 10:24:30 +01:00
hsu
dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width"
2020-01-29 10:24:27 +01:00
ioat
dmaengine: ioat setting ioat timeout as module parameter
2020-07-31 16:44:03 +02:00
ipu
dmaengine: ipu: Make sure the interrupt routine checks all interrupts.
2017-03-12 06:41:52 +01:00
ppc4xx
Merge branch 'topic/unmap_cleanup' into for-linus
2016-10-03 09:36:11 +05:30
qcom
dmaengine: qcom: bam_dma: Fix resource leak
2019-11-10 11:23:31 +01:00
sh
dmaengine: rcar-dmac: Reject zero-length slave DMA requests
2019-08-06 18:29:35 +02:00
xilinx
dmaengine: zynqmp_dma: fix burst length configuration
2020-10-01 20:40:05 +02:00
acpi-dma.c
…
amba-pl08x.c
dmaengine: Remove site specific OOM error messages on kzalloc
2016-06-21 21:35:00 +05:30
at_hdmac_regs.h
…
at_hdmac.c
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
2020-09-12 11:47:33 +02:00
at_xdmac.c
dmaengine: at_xdmac: remove BUG_ON macro in tasklet
2019-05-31 06:48:18 -07:00
bcm2835-dma.c
dmaengine: bcm2835: Print error in case setting DMA mask fails
2019-10-05 12:30:17 +02:00
coh901318_lli.c
dmaengine: coh901318: use NULL for pointer initialization
2016-09-26 22:28:24 +05:30
coh901318.c
dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
2020-03-11 07:53:13 +01:00
coh901318.h
…
cppi41.c
dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
2019-11-06 12:18:23 +01:00
dma-axi-dmac.c
dmaengine: axi-dmac: Don't check the number of frames for alignment
2020-01-29 10:24:22 +01:00
dma-jz4740.c
dmaengine: jz4740: disable/unprepare clk if probe fails
2018-02-25 11:05:49 +01:00
dma-jz4780.c
dmaengine: dma-jz4780: Further residue status fix
2019-11-25 09:52:11 +01:00
dmaengine.c
dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
2017-12-20 10:07:21 +01:00
dmaengine.h
dmaengine: add support to provide error result from a DMA transation
2016-08-08 08:11:42 +05:30
dmatest.c
dmaengine: dmatest: Fix iteration non-stop logic
2020-05-05 19:14:40 +02:00
edma.c
dmaengine: ti: edma: fix missed failure handling
2020-01-29 10:24:35 +01:00
ep93xx_dma.c
dmaengine: ep93xx: Don't drain the transfers in terminate_all()
2017-06-14 15:05:57 +02:00
fsl_raid.c
dmaengine updates for 4.8-rc1
2016-10-06 17:13:54 -07:00
fsl_raid.h
…
fsl-edma.c
dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler
2020-07-22 09:10:53 +02:00
fsldma.c
Merge branch 'topic/unmap_cleanup' into for-linus
2016-10-03 09:36:11 +05:30
fsldma.h
…
idma64.c
dmaengine: idma64: Use actual device for DMA transfers
2019-06-22 08:17:17 +02:00
idma64.h
dmaengine: idma64: Use actual device for DMA transfers
2019-06-22 08:17:17 +02:00
img-mdc-dma.c
dmaengine: img-mdc: fix a possible NULL dereference
2016-08-22 11:57:49 +05:30
imx-dma.c
dmaengine: imx-dma: fix warning comparison of distinct pointer types
2019-04-05 22:29:14 +02:00
imx-sdma.c
dmaengine: imx-sdma: fix size check for sdma script_number
2020-01-29 10:24:34 +01:00
iop-adma.c
dmaengine: iop-adma: use correct printk format strings
2019-10-05 12:30:22 +02:00
k3dma.c
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
2018-08-24 13:12:33 +02:00
Kconfig
dmaengine: dma-jz4780: Don't depend on MACH_JZ4780
2019-11-25 09:52:11 +01:00
lpc18xx-dmamux.c
…
Makefile
dmaengine: mv_xor_v2: new driver
2016-07-12 10:09:53 +05:30
mic_x100_dma.c
dmaengine: mic_x100_dma: convert callback to helper function
2016-08-08 08:11:39 +05:30
mic_x100_dma.h
…
mmp_pdma.c
dmaengine: mmp_pdma: convert callback to helper function
2016-08-08 08:11:39 +05:30
mmp_tdma.c
dmaengine: mmp_tdma: Reset channel error on release
2020-05-20 08:15:35 +02:00
moxart-dma.c
dmaengine: moxart: remove NO_IRQ
2016-09-05 16:40:52 +05:30
mpc512x_dma.c
Merge branch 'topic/err_reporting' into for-linus
2016-10-03 09:17:33 +05:30
mv_xor_v2.c
dmaengine: mv_xor_v2: kill the tasklets upon exit
2018-09-26 08:36:34 +02:00
mv_xor.c
dmaengine: mv_xor: Use correct device for DMA API
2020-01-29 10:24:16 +01:00
mv_xor.h
dmaengine: mv_xor: Add support for IO (PCIe) src/dst areas
2016-09-15 21:13:59 +05:30
mxs-dma.c
Merge branch 'topic/no_irq' into for-linus
2016-10-03 09:18:29 +05:30
nbpfaxi.c
dmaengine: nbpfaxi: convert callback to helper function
2016-08-08 08:11:40 +05:30
of-dma.c
dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
2020-09-12 11:47:32 +02:00
omap-dma.c
dmaengine: ti: omap-dma: Add cleanup in omap_dma_probe()
2019-09-21 07:14:20 +02:00
pch_dma.c
dmaengine: pch_dma.c: Avoid data race between probe and irq handler
2020-05-20 08:15:34 +02:00
pl330.c
dmaengine: pl330: Fix burst length if burst size is smaller than bus width
2020-09-12 11:47:34 +02:00
pxa_dma.c
dmaengine: pxa_dma: fix debug message
2016-08-19 16:17:26 +05:30
s3c24xx-dma.c
Merge branch 'topic/compile_test' into for-linus
2016-10-03 09:16:03 +05:30
sa11x0-dma.c
dmaengine: sa11x0: use correct print specifiers for size_t
2016-09-26 22:29:26 +05:30
sirf-dma.c
Merge branch 'topic/no_irq' into for-linus
2016-10-03 09:18:29 +05:30
ste_dma40_ll.c
dmaengine: ste_dma40_ll: make d40_width_to_bits static
2016-06-08 08:59:55 +05:30
ste_dma40_ll.h
…
ste_dma40.c
dmaengine: ste_dma40: fix unneeded variable warning
2019-09-06 10:19:41 +02:00
stm32-dma.c
dmaengine: stm32-dma: Fix null pointer dereference in stm32_dma_tx_status
2017-12-09 22:01:50 +01:00
sun4i-dma.c
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
sun6i-dma.c
dmaengine: sun6i: fix the uninitialized value for v_lli
2016-11-14 10:35:58 +05:30
tegra20-apb-dma.c
dmaengine: tegra-apb: Prevent race conditions on channel's freeing
2020-10-01 20:40:08 +02:00
tegra210-adma.c
dmaengine: tegra210-adma: Fix runtime PM imbalance on error
2020-07-31 16:44:03 +02:00
ti-dma-crossbar.c
dmaengine: ti: dma-crossbar: Fix a memory leak bug
2019-09-21 07:14:20 +02:00
timb_dma.c
dmaengine: timb_dma: Use proper enum in td_prep_slave_sg
2019-11-25 09:53:24 +01:00
TODO
…
txx9dmac.c
dmaengine: txx9dmac: convert callback to helper function
2016-08-08 08:11:41 +05:30
txx9dmac.h
…
virt-dma.c
dmaengine: virt-dma: convert callback to helper function
2016-08-08 08:11:41 +05:30
virt-dma.h
dmaengine: virt-dma: move function declarations
2016-10-01 11:41:39 +05:30
xgene-dma.c
dmaengine: xgene-dma: move unmap to before callback
2016-08-08 08:11:43 +05:30
zx296702_dma.c
dmaengine: zx: fix build warning
2018-02-25 11:05:53 +01:00