linux-kernel - [PATCH] typec: tcpm: fix ptr

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Message-ID: <20171220152456.GA73368@lkp-g5>
Date:   Wed, 20 Dec 2017 23:24:56 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Adam Thomson <Adam.Thomson.Opensource@...semi.com>
Cc:     kbuild-all@...org,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sebastian Reichel <sre@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Yueyao Zhu <yueyao.zhu@...il.com>,
        Rui Miguel Silva <rmfrfs@...il.com>,
        linux-usb@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, support.opensource@...semi.com
Subject: [PATCH] typec: tcpm: fix ptr_ret.cocci warnings

From: Fengguang Wu <fengguang.wu@...el.com>

drivers/usb/typec/tcpm.c:4396:1-3: WARNING: PTR_ERR_OR_ZERO can be used


 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Fixes: 91886adfce05 ("typec: tcpm: Represent source supply through power_supply class")
CC: Adam Thomson <Adam.Thomson.Opensource@...semi.com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

 tcpm.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -4393,10 +4393,7 @@ int devm_tcpm_psy_register(struct tcpm_p
 
 	port->psy = devm_power_supply_register(port->dev, &port->psy_desc,
 					       &psy_cfg);
-	if (IS_ERR(port->psy))
-		return PTR_ERR(port->psy);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(port->psy);
 }
 
 struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)