linux-kernel - [PATCH] net: dsa: sja1105: Fix return value check in sja1105_ptp_clock

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Date:   Thu, 12 Nov 2020 22:55:32 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <olteanv@...il.com>, <andrew@...n.ch>, <vivien.didelot@...il.com>,
        <f.fainelli@...il.com>, <davem@...emloft.net>, <kuba@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] net: dsa: sja1105: Fix return value check in sja1105_ptp_clock_register()

drivers/net/dsa/sja1105/sja1105_ptp.c:869 sja1105_ptp_clock_register() warn: passing zero to 'PTR_ERR'

ptp_clock_register() returns ERR_PTR() and never returns
NULL. The NULL test should be removed.

Fixes: bb77f36ac21d ("net: dsa: sja1105: Add support for the PTP clock")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/dsa/sja1105/sja1105_ptp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/sja1105/sja1105_ptp.c b/drivers/net/dsa/sja1105/sja1105_ptp.c
index 1b90570b257b..1e41d491c854 100644
--- a/drivers/net/dsa/sja1105/sja1105_ptp.c
+++ b/drivers/net/dsa/sja1105/sja1105_ptp.c
@@ -865,7 +865,7 @@ int sja1105_ptp_clock_register(struct dsa_switch *ds)
 	spin_lock_init(&tagger_data->meta_lock);
 
 	ptp_data->clock = ptp_clock_register(&ptp_data->caps, ds->dev);
-	if (IS_ERR_OR_NULL(ptp_data->clock))
+	if (IS_ERR(ptp_data->clock))
 		return PTR_ERR(ptp_data->clock);
 
 	ptp_data->cmd.corrclk4ts = true;
-- 
2.17.1