fsnotify: don't put user context if it was never assigned

[cascardo/linux.git] / fs / notify / inotify / inotify_fsnotify.c

diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 0f88bc0..7d888d7 100644 (file)
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -165,8 +165,10 @@ static void inotify_free_group_priv(struct fsnotify_group *group)
        /* ideally the idr is empty and we won't hit the BUG in the callback */
        idr_for_each(&group->inotify_data.idr, idr_callback, group);
        idr_destroy(&group->inotify_data.idr);
-       atomic_dec(&group->inotify_data.user->inotify_devs);
-       free_uid(group->inotify_data.user);
+       if (group->inotify_data.user) {
+               atomic_dec(&group->inotify_data.user->inotify_devs);
+               free_uid(group->inotify_data.user);
+       }
 }
 
 static void inotify_free_event(struct fsnotify_event *fsn_event)