[CIFS] Fixed build warning in is_ip

Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 957998e..791ca5c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1302,6 +1302,9 @@
 						    "begin with // or \\\\ \n");
 				return 1;
 			}
+			value = strpbrk(vol->UNC+2, "/\\");
+			if (value)
+				*value = '\\';
 		} else {
 			printk(KERN_WARNING "CIFS: UNC name too long\n");
 			return 1;