This patch will drop the lkb reference in an very unlikely case which
should in practice not happened. However if it happens we cleanup the
reference just in case.
Signed-off-by: Alexander Aring <aahri...@redhat.com>
---
fs/dlm/ast.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/dlm/ast.c b/fs/dlm/ast.c
index 078bbbd43a53..982d093b80cd 100644
--- a/fs/dlm/ast.c
+++ b/fs/dlm/ast.c
@@ -186,7 +186,7 @@ void dlm_callback_work(struct work_struct *work)
spin_unlock(&lkb->lkb_cb_lock);
if (WARN_ON(rv == DLM_DEQUEUE_CALLBACK_EMPTY))
- return;
+ goto out;
for (;;) {
castfn = lkb->lkb_astfn;
@@ -217,6 +217,7 @@ void dlm_callback_work(struct work_struct *work)
spin_unlock(&lkb->lkb_cb_lock);
}
+out:
/* undo kref_get from dlm_add_callback, may cause lkb to be freed */
dlm_put_lkb(lkb);
}
--
2.31.1
