1 files changed, 1 insertions, 1 deletions

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index f1ed935322db..db692f554158 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -737,7 +737,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 
 root_found:
         /* We don't support read-write mounts */
-        if (!(s->s_flags & MS_RDONLY)) {
+        if (!sb_rdonly(s)) {
                 error = -EACCES;
                 goto out_freebh;
         }