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drm/radeon: fix user ptr race condition 

Port of amdgpu patch 9298e52f8b.

Signed-off-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2015-07-14 15:58:30 +02:00 committed by Alex Deucher
parent 233709d2cd
commit 12f1384da6
2 changed files with 1 additions and 1 deletions
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1
drivers/gpu/drm/radeon/radeon_gem.c
View File

@ -36,6 +36,7 @@ void radeon_gem_object_free(struct drm_gem_object *gobj)
if (robj) {
if (robj->gem_base.import_attach)
drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
radeon_mn_unregister(robj);
radeon_bo_unref(&robj);
}
}

1
drivers/gpu/drm/radeon/radeon_object.c
View File

@ -75,7 +75,6 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
bo = container_of(tbo, struct radeon_bo, tbo);
radeon_update_memory_usage(bo, bo->tbo.mem.mem_type, -1);
radeon_mn_unregister(bo);
mutex_lock(&bo->rdev->gem.mutex);
list_del_init(&bo->list);