1 files changed, 5 insertions, 0 deletions

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 84f3c7fd1552..522c3fd7eb3c 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1684,6 +1684,9 @@ static void ubifs_put_super(struct super_block *sb)
 
         ubifs_msg("un-mount UBI device %d, volume %d", c->vi.ubi_num,
                   c->vi.vol_id);
+
+        lock_kernel();
+
         /*
          * The following asserts are only valid if there has not been a failure
          * of the media. For example, there will be dirty inodes if we failed
@@ -1750,6 +1753,8 @@ static void ubifs_put_super(struct super_block *sb)
         ubi_close_volume(c->ubi);
         mutex_unlock(&c->umount_mutex);
         kfree(c);
+
+        unlock_kernel();
 }
 
 static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)