Unionfs: Check remount options for being NULL

Signed-off-by: Adrian Brunyate <abrunyate@yahoo.com>
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>

diff --git a/fs/unionfs/super.c b/fs/unionfs/super.c
index ee12d030ca1cd4bab2221d3191b1af0681690c0c..02c0cc862089a12394acd4399e11677de6fc30c9 100644 (file)
--- a/fs/unionfs/super.c
+++ b/fs/unionfs/super.c
@@ -442,7 +442,7 @@ static int unionfs_remount_fs(struct super_block *sb, int *flags,
         * the union to a "ro" or "rw" and the VFS took care of it.  So
         * nothing to do and we're done.
         */
-       if (options[0] == '\0')
+       if (!options || options[0] == '\0')
                goto out_error;
 
        /*