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| author | Rob Clark <robdclark@chromium.org> | 2022-08-07 09:09:01 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2022-08-15 10:19:53 -0700 |
| commit | 174974d8463b77c2b4065e98513adb204e64de7d (patch) | |
| tree | bb3c3a06489282ee0bc29322a422d80f75b78c14 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
| parent | 02b9f2636209beb843ca501d47f7fddc8792b2d7 (diff) | |
drm/msm/rd: Fix FIFO-full deadlock
If the previous thing cat'ing $debugfs/rd left the FIFO full, then
subsequent open could deadlock in rd_write() (because open is blocked,
not giving a chance for read() to consume any data in the FIFO). Also
it is generally a good idea to clear out old data from the FIFO.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/496706/
Link: https://lore.kernel.org/r/20220807160901.2353471-2-robdclark@gmail.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
0 files changed, 0 insertions, 0 deletions