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| author | Sebastian von Ohr <[email protected]> | 2020-03-03 13:05:18 +0000 |
|---|---|---|
| committer | Vinod Koul <[email protected]> | 2020-04-15 16:12:11 +0000 |
| commit | b269426011bcfd97b7c3101abfe1a99147b6f40b (patch) | |
| tree | 96e729dae0ec64fd5aa4dfff5de6f9975ed9c7ad /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | dmaengine: ti: k3-psil: fix deadlock on error path (diff) | |
| download | kernel-b269426011bcfd97b7c3101abfe1a99147b6f40b.tar.gz kernel-b269426011bcfd97b7c3101abfe1a99147b6f40b.zip | |
dmaengine: xilinx_dma: Add missing check for empty list
The DMA transfer might finish just after checking the state with
dma_cookie_status, but before the lock is acquired. Not checking
for an empty list in xilinx_dma_tx_status may result in reading
random data or data corruption when desc is written to. This can
be reliably triggered by using dma_sync_wait to wait for DMA
completion.
Signed-off-by: Sebastian von Ohr <[email protected]>
Tested-by: Radhey Shyam Pandey <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions