Merge branch 'x86/urgent' into core/efi, to pick up a pending EFI fix

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 5 insertions, 11 deletions

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 035dacc93382..838217f8ce7d 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -571,24 +571,18 @@ ast_dumb_mmap_offset(struct drm_file *file,
 		     uint64_t *offset)
 {
 	struct drm_gem_object *obj;
-	int ret;
 	struct ast_bo *bo;
 
-	mutex_lock(&dev->struct_mutex);
 	obj = drm_gem_object_lookup(dev, file, handle);
-	if (obj == NULL) {
-		ret = -ENOENT;
-		goto out_unlock;
-	}
+	if (obj == NULL)
+		return -ENOENT;
 
 	bo = gem_to_ast_bo(obj);
 	*offset = ast_bo_mmap_offset(bo);
 
-	drm_gem_object_unreference(obj);
-	ret = 0;
-out_unlock:
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
+	drm_gem_object_unreference_unlocked(obj);
+
+	return 0;
 
 }