netdev - [PATCH] net: dsa: sja1105: Add missing spin

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Message-ID: <20190717141200.46604-1-yuehaibing@huawei.com>
Date:   Wed, 17 Jul 2019 22:12:00 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <andrew@...n.ch>, <vivien.didelot@...il.com>,
        <f.fainelli@...il.com>, <davem@...emloft.net>, <olteanv@...il.com>
CC:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] net: dsa: sja1105: Add missing spin_unlock

It should call spin_unlock() before return NULL.
Detected by Coccinelle.

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: f3097be21bf1 net: ("dsa: sja1105: Add a state machine for RX timestamping")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 net/dsa/tag_sja1105.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/dsa/tag_sja1105.c b/net/dsa/tag_sja1105.c
index 1d96c9d..26363d7 100644
--- a/net/dsa/tag_sja1105.c
+++ b/net/dsa/tag_sja1105.c
@@ -216,6 +216,7 @@ static struct sk_buff
 		if (!skb) {
 			dev_err_ratelimited(dp->ds->dev,
 					    "Failed to copy stampable skb\n");
+			spin_unlock(&sp->data->meta_lock);
 			return NULL;
 		}
 		sja1105_transfer_meta(skb, meta);
-- 
2.7.4