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path: root/fs/gfs2/locking/dlm/mount.c
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Diffstat (limited to 'fs/gfs2/locking/dlm/mount.c')
-rw-r--r--fs/gfs2/locking/dlm/mount.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
index 41c5b04caab..f2efff42422 100644
--- a/fs/gfs2/locking/dlm/mount.c
+++ b/fs/gfs2/locking/dlm/mount.c
@@ -67,6 +67,11 @@ static int make_args(struct gdlm_ls *ls, char *data_arg, int *nodir)
memset(data, 0, 256);
strncpy(data, data_arg, 255);
+ if (!strlen(data)) {
+ log_error("no mount options, (u)mount helpers not installed");
+ return -EINVAL;
+ }
+
for (options = data; (x = strsep(&options, ":")); ) {
if (!*x)
continue;