[CIFS] Fix unbalanced call to GetXid/FreeXid

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

fs/cifs/cifsfs.c

@@ -346,7 +346,7 @@ int cifs_xquota_set(struct super_block *sb, int quota_type, qid_t qid,
 	if (pTcon) {
 		cFYI(1, ("set type: 0x%x id: %d", quota_type, qid));
 	} else {
-		return -EIO;
+		rc = -EIO;
 	}
 
 	FreeXid(xid);