1 files changed, 5 insertions, 1 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 0a10a59b6392..0d92114195ab 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -204,6 +204,9 @@ cifs_put_super(struct super_block *sb)
                 cFYI(1, ("Empty cifs superblock info passed to unmount"));
                 return;
         }
+
+        lock_kernel();
+
         rc = cifs_umount(sb, cifs_sb);
         if (rc)
                 cERROR(1, ("cifs_umount failed with return code %d", rc));
@@ -216,7 +219,8 @@ cifs_put_super(struct super_block *sb)
 
         unload_nls(cifs_sb->local_nls);
         kfree(cifs_sb);
-        return;
+
+        unlock_kernel();
 }
 
 static int