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-rw-r--r--fs/dlm/ast.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/dlm/ast.c b/fs/dlm/ast.c
index 07fed838d8fd..562fa8c3edff 100644
--- a/fs/dlm/ast.c
+++ b/fs/dlm/ast.c
@@ -181,6 +181,8 @@ void dlm_add_cb(struct dlm_lkb *lkb, uint32_t flags, int mode, int status,
spin_lock(&dlm_cb_seq_spin);
new_seq = ++dlm_cb_seq;
+ if (!dlm_cb_seq)
+ new_seq = ++dlm_cb_seq;
spin_unlock(&dlm_cb_seq_spin);
if (lkb->lkb_flags & DLM_IFL_USER) {