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-rw-r--r--fs/ocfs2/dlmglue.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 23adcbf..956edf6 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1391,6 +1391,11 @@ static int __ocfs2_cluster_lock(struct ocfs2_super *osb,
int noqueue_attempted = 0;
int dlm_locked = 0;
+ if (!(lockres->l_flags & OCFS2_LOCK_INITIALIZED)) {
+ mlog_errno(-EINVAL);
+ return -EINVAL;
+ }
+
ocfs2_init_mask_waiter(&mw);
if (lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
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