linux-kernel - [PATCH v2 06/14] soc: mediatek: cmdq: return send msg error code

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Message-ID: <1574819937-6246-8-git-send-email-dennis-yc.hsieh@mediatek.com>
Date:   Wed, 27 Nov 2019 09:58:49 +0800
From:   Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Jassi Brar <jassisinghbrar@...il.com>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <wsd_upstream@...iatek.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        CK Hu <ck.hu@...iatek.com>,
        Houlong Wei <houlong.wei@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>
Subject: [PATCH v2 06/14] soc: mediatek: cmdq: return send msg error code

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@...iatek.com>
---
 drivers/soc/mediatek/mtk-cmdq-helper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 274f6f311d05..8421b4090304 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -353,11 +353,11 @@ 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);
 	/* We can send next packet immediately, so just call txdone. */
 	mbox_client_txdone(client->chan, 0);
 
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL(cmdq_pkt_flush_async);
 
-- 
2.18.0