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