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authorAlex Deucher <alexander.deucher@amd.com>2025-09-04 12:35:05 -0400
committerAlex Deucher <alexander.deucher@amd.com>2025-09-09 16:38:26 -0400
commit7838fb5f119191403560eca2e23613380c0e425e (patch)
tree9621f5869499db0a90533017a347b608803d6ee6
parent53503556273a5ead8b75534085e2dcb46e96f883 (diff)
drm/amdgpu: fix a memory leak in fence cleanup when unloading
Commit b61badd20b44 ("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: b61badd20b44 ("drm/amdgpu: fix usage slab after free") Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit a525fa37aac36c4591cc8b07ae8957862415fbd5) Cc: stable@vger.kernel.org
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 6379bb25bf5c..486c3646710c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -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;
}
/**