drm: drm_debugfs, check kmalloc retval

Check kmalloc return value in drm_debugfs_create_files and bail out
appropriately if the pointer is NULL.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index 2960b6d73456..9903f270e440 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -101,6 +101,10 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count,
                         continue;
 
                 tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+                if (tmp == NULL) {
+                        ret = -1;
+                        goto fail;
+                }
                 ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
                                           root, tmp, &drm_debugfs_fops);
                 if (!ent) {