From: Christian König Date: Tue, 14 Jul 2015 13:58:30 +0000 (+0200) Subject: drm/radeon: fix user ptr race condition X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=12f1384da650bdb835fff63e66fe815ea882fc0e;p=openwrt%2Fstaging%2Fblogic.git drm/radeon: fix user ptr race condition Port of amdgpu patch 9298e52f8b51d1e4acd68f502832f3a97f8cf892. Signed-off-by: Christian König CC: stable@vger.kernel.org Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 013ec7106e55..3dcc5733ff69 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -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); } } diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 318165d4855c..676362769b8d 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -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);