John Stultz 2f42e05b94 dmaengine: k3dma: Avoid null pointer traversal ... In some cases we seem to submit two transactions in a row, which causes us to lose track of the first. If we then cancel the request, we may still get an interrupt, which traverses a null ds_run value. So try to avoid starting a new transaction if the ds_run value is set. While this patch avoids the null pointer crash, I've had some reports of the k3dma driver still getting confused, which suggests the ds_run/ds_done value handling still isn't quite right. However, I've not run into an issue recently with it so I think this patch is worth pushing upstream to avoid the crash. Signed-off-by: John Stultz <john.stultz@linaro.org> [add ss tag] Link: https://lore.kernel.org/r/20191218190906.6641-1-john.stultz@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>		2019-12-23 13:21:14 +05:30
..
bestcomm
dw	dmaengine: dw: platform: Mark 'hclk' clock optional	2019-10-14 13:51:44 +05:30
dw-axi-dmac
dw-edma
fsl-dpaa2-qdma	dmaengine: fsl-dpaa2-qdma: Remove unnecessary local variables in DPDMAI_CMD_CREATE macro	2019-11-02 22:03:01 +05:30
hsu
ioat	dmanegine: ioat/dca: Use struct_size() helper	2019-09-04 10:17:14 +05:30
ipu
mediatek	dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq fails	2019-11-14 12:16:53 +05:30
ppc4xx
qcom	dmaengine: qcom: bam_dma: Fix resource leak	2019-10-18 13:27:58 +05:30
sf-pdma	dmaengine: sf-pdma: move macro to header file	2019-11-22 11:15:28 +05:30
sh	dmaengine: rcar-dmac: Add dma-channel-mask property support	2019-10-14 12:26:58 +05:30
ti	dmaengine: ti: edma: fix missed failure handling	2019-11-22 11:13:42 +05:30
xilinx	Merge branch 'fixes' into next	2019-11-14 16:02:51 +05:30
acpi-dma.c	dmaengine: acpi: Add kernel doc parameter descriptions	2019-08-21 09:41:27 +05:30
altera-msgdma.c
amba-pl08x.c
at_hdmac.c
at_hdmac_regs.h
at_xdmac.c	dmaengine: at_xdmac: Use devm_platform_ioremap_resource() in at_xdmac_probe()	2019-10-14 13:21:20 +05:30
bcm-sba-raid.c
bcm2835-dma.c	dmaengine updates for v5.4-rc1	2019-09-17 19:04:40 -07:00
coh901318.c
coh901318.h
coh901318_lli.c
dma-axi-dmac.c
dma-jz4780.c	dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B	2019-12-11 16:25:58 +05:30
dmaengine.c
dmaengine.h
dmatest.c	dmaengine: dmatest: Add support for completion polling	2019-09-04 10:14:22 +05:30
ep93xx_dma.c
fsl-edma-common.c	dmaengine: change alignment of mux_configure32 and fsl_edma_chan_mux	2019-08-20 17:09:34 +05:30
fsl-edma-common.h	dmaengine: fsl-edma: add i.mx7ulp edma2 version support	2019-08-08 17:54:36 +05:30
fsl-edma.c	dmaengine: fsl-edma: implement .device_synchronize callback	2019-08-08 19:01:58 +05:30
fsl-qdma.c	dmaengine: fsl-qdma: Handle invalid qdma-queue0 IRQ	2019-11-02 21:55:19 +05:30
fsl_raid.c
fsl_raid.h
fsldma.c	dmaengine: fsldma: Mark expected switch fall-through	2019-08-20 19:42:34 -05:00
fsldma.h
idma64.c
idma64.h
img-mdc-dma.c
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 size check for sdma script_number	2019-10-14 13:33:44 +05:30
iop-adma.c	dmaengine: iop-adma: clean up an indentation issue	2019-11-14 10:27:37 +05:30
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	2019-12-23 13:21:14 +05:30
Kconfig	dmaengine: Fix Kconfig indentation	2019-11-22 11:16:26 +05:30
lpc18xx-dmamux.c
Makefile	dmaengine: sf-pdma: add platform DMA support for HiFive Unleashed A00	2019-11-14 12:40:46 +05:30
mcf-edma.c
mic_x100_dma.c
mic_x100_dma.h
milbeaut-hdmac.c	dmaengine: milbeaut-hdmac: remove redundant error log	2019-11-08 09:26:17 +05:30
milbeaut-xdmac.c	dmaengine: milbeaut-xdmac: remove redundant error log	2019-11-08 09:26:17 +05:30
mmp_pdma.c	dmaengine: mmp_pdma: add missed of_dma_controller_free	2019-11-22 10:51:30 +05:30
mmp_tdma.c	dmaengine: mmp_tdma: add missed of_dma_controller_free	2019-11-22 10:51:29 +05:30
moxart-dma.c
mpc512x_dma.c
mv_xor.c
mv_xor.h
mv_xor_v2.c	dmaengine: mv_xor_v2: Fix -Wshift-negative-value	2019-08-20 17:06:36 +05:30
mxs-dma.c
nbpfaxi.c
of-dma.c
owl-dma.c	dmaengine: owl: Use devm_platform_ioremap_resource() in owl_dma_probe()	2019-10-14 13:21:20 +05:30
pch_dma.c
pl330.c	dmaengine: pl330: use the same attributes when freeing pl330->mcode_cpu	2019-08-08 18:49:43 +05:30
pxa_dma.c
s3c24xx-dma.c	dmaengine: Remove dev_err() usage after platform_get_irq()	2019-07-31 20:50:53 +05:30
sa11x0-dma.c
sirf-dma.c
sprd-dma.c	dmaengine: sprd: Add wrap address support for link-list mode	2019-11-14 16:03:35 +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
ste_dma40.c
ste_dma40_ll.c
ste_dma40_ll.h
stm32-dma.c	dmaengine: stm32-dma: Use struct_size() helper	2019-09-04 10:25:08 +05:30
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 updates for v5.4-rc1	2019-09-17 19:04:40 -07:00
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
tegra210-adma.c	dmaengine: tegra210-adma: fix transfer failure	2019-10-14 12:40:38 +05:30
timb_dma.c
TODO
txx9dmac.c
txx9dmac.h
uniphier-mdmac.c	dmaengine: uniphier-mdmac: use devm_platform_ioremap_resource()	2019-10-11 15:45:41 +05:30
virt-dma.c
virt-dma.h
xgene-dma.c	dmaengine: Remove dev_err() usage after platform_get_irq()	2019-07-31 20:50:53 +05:30
zx_dma.c	dmaengine: zx: remove: removed dmam_pool_destroy	2019-11-14 12:16:53 +05:30