drm/amd/amdgpu: fix bad job hw_fence use after free in advance tdr

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[Why]
In advance tdr mode, the real bad job will be resubmitted twice, while
in drm_sched_resubmit_jobs_ext, there's a dma_fence_put, so the bad job
is put one more time than other jobs.

[How]
Adding dma_fence_get before resbumit job in
amdgpu_device_recheck_guilty_jobs and put the fence for normal jobs

Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jingwen Chen 2021-10-22 11:30:01 +08:00 • committed by Alex Deucher

parent d9bd054177

commit 38d4e4638e

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

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