Commit 9f0a0a38 authored by Houlong Wei's avatar Houlong Wei Committed by Jassi Brar

mailbox: mediatek: Add check for possible failure of kzalloc

The patch 623a6143("mailbox: mediatek: Add Mediatek CMDQ driver")
introduce the following static checker warning:
  drivers/mailbox/mtk-cmdq-mailbox.c:366 cmdq_mbox_send_data()
  error: potential null dereference 'task'.  (kzalloc returns null)

Fixes: 623a6143 ("mailbox: mediatek: Add Mediatek CMDQ driver")
Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarHoulong Wei <houlong.wei@mediatek.com>
Reviewed-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarJassi Brar <jaswinder.singh@linaro.org>
parent 462f668e
......@@ -363,6 +363,9 @@ static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data)
WARN_ON(cmdq->suspended);
task = kzalloc(sizeof(*task), GFP_ATOMIC);
if (!task)
return -ENOMEM;
task->cmdq = cmdq;
INIT_LIST_HEAD(&task->list_entry);
task->pa_base = pkt->pa_base;
......
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