mailbox: mtk-cmdq: Fix uninitialized variable in cmdq_mbox_flush()

The "cb" pointer needs to be initialized before can assign
"data.data = cb->data;".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 301e65b..67a42b5 100644 (file)
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -455,10 +455,10 @@ static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout)
 
        list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
                                 list_entry) {
+               cb = &task->pkt->async_cb;
                data.sta = -ECONNABORTED;
                data.data = cb->data;
                data.pkt = task->pkt;
-               cb = &task->pkt->async_cb;
                if (cb->cb)
                        cb->cb(data);