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drm/amdgpu: fix a memory leak in fence cleanup when unloading

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Commit b61badd20b ("drm/amdgpu: fix usage slab after free")
reordered when amdgpu_fence_driver_sw_fini() was called after
that patch, amdgpu_fence_driver_sw_fini() effectively became
a no-op as the sched entities we never freed because the
ring pointers were already set to NULL.  Remove the NULL
setting.

Reported-by: Lin.Cao <lincao12@amd.com>
Cc: Vitaly Prosyak <vitaly.prosyak@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Fixes: b61badd20b ("drm/amdgpu: fix usage slab after free")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2025-09-04 12:35:05 -04:00
parent 2fd653b9bb
commit a525fa37aa
1 changed files with 0 additions and 2 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
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@ -421,8 +421,6 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring)
dma_fence_put(ring->vmid_wait);
ring->vmid_wait = NULL;
ring->me = 0;
ring->adev->rings[ring->idx] = NULL;
}
/**