[PATCH v5 05/13] soc: mediatek: cmdq: return send msg error code

Dennis YC Hsieh
2020-03-08T10:55:23Z

Return error code to client if send message fail,
so that client has chance to error handling.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Fixes: 576f1b4bc802 ("soc: mediatek: Add Mediatek CMDQ helper")
Reviewed-by: CK Hu <ck.hu@mediatek.com>
---
drivers/soc/mediatek/mtk-cmdq-helper.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 2e1bc513569b..98f23ba3ba47 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -351,7 +351,9 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb,
spin_unlock_irqrestore(&client->lock, flags);
}

- mbox_send_message(client->chan, pkt);
+ err = mbox_send_message(client->chan, pkt);
+ if (err < 0)
+ return err;
/* We can send next packet immediately, so just call txdone. */
mbox_client_txdone(client->chan, 0);

--
2.18.0