1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index d067c12ba94..1c7a1c0d3ed 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -118,7 +118,10 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count,
                 tmp->minor = minor;
                 tmp->dent = ent;
                 tmp->info_ent = &files[i];
-                list_add(&(tmp->list), &(minor->debugfs_nodes.list));
+
+                mutex_lock(&minor->debugfs_lock);
+                list_add(&tmp->list, &minor->debugfs_list);
+                mutex_unlock(&minor->debugfs_lock);
         }
         return 0;
 
@@ -146,7 +149,8 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
         char name[64];
         int ret;
 
-        INIT_LIST_HEAD(&minor->debugfs_nodes.list);
+        INIT_LIST_HEAD(&minor->debugfs_list);
+        mutex_init(&minor->debugfs_lock);
         sprintf(name, "%d", minor_id);
         minor->debugfs_root = debugfs_create_dir(name, root);
         if (!minor->debugfs_root) {
@@ -192,8 +196,9 @@ int drm_debugfs_remove_files(struct drm_info_list *files, int count,
         struct drm_info_node *tmp;
         int i;
 
+        mutex_lock(&minor->debugfs_lock);
         for (i = 0; i < count; i++) {
-                list_for_each_safe(pos, q, &minor->debugfs_nodes.list) {
+                list_for_each_safe(pos, q, &minor->debugfs_list) {
                         tmp = list_entry(pos, struct drm_info_node, list);
                         if (tmp->info_ent == &files[i]) {
                                 debugfs_remove(tmp->dent);
@@ -202,6 +207,7 @@ int drm_debugfs_remove_files(struct drm_info_list *files, int count,
                         }
                 }
         }
+        mutex_unlock(&minor->debugfs_lock);
         return 0;
 }
 EXPORT_SYMBOL(drm_debugfs_remove_files);