cifs: double lock in cifs_reconnect_tcon()

This lock was supposed to be an unlock.

Fixes: 6cc041e ("cifs: avoid races in parallel reconnects in smb1")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: error27

fs/cifs/cifssmb.c

@@ -120,7 +120,7 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
 	spin_lock(&server->srv_lock);
 	if (server->tcpStatus == CifsNeedReconnect) {
 		spin_unlock(&server->srv_lock);
-		mutex_lock(&ses->session_mutex);
+		mutex_unlock(&ses->session_mutex);
 
 		if (tcon->retry)
 			goto again;