From: Christian König <christian.koenig@xxxxxxx> commit 74ea8e78ab349514c9f4df0be1189d91267d750d upstream. It can be that neither fence were initialized when we run out of UVD streams for example. v2: fix typo breaking compile Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2324 Signed-off-by: Christian König <christian.koenig@xxxxxxx> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx # 6.1.x Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c @@ -154,8 +154,14 @@ void amdgpu_job_free_resources(struct am struct dma_fence *f; unsigned i; - /* use sched fence if available */ - f = job->base.s_fence ? &job->base.s_fence->finished : &job->hw_fence; + /* Check if any fences where initialized */ + if (job->base.s_fence && job->base.s_fence->finished.ops) + f = &job->base.s_fence->finished; + else if (job->hw_fence.ops) + f = &job->hw_fence; + else + f = NULL; + for (i = 0; i < job->num_ibs; ++i) amdgpu_ib_free(ring->adev, &job->ibs[i], f); }
