linux-kernel - [PATCH] thermal: cpu_cooling: fix ptr

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Message-ID: <20150304203402.GA168719@athens.lkp.intel.com>
Date:	Thu, 5 Mar 2015 04:34:02 +0800
From:	kbuild test robot <fengguang.wu@...el.com>
To:	Javi Merino <javi.merino@....com>
Cc:	kbuild-all@...org, Eduardo Valentin <edubezval@...il.com>,
	Kapileshwar Singh <kapileshwar.singh@....com>,
	Punit Agrawal <punit.agrawal@....com>,
	Zhang Rui <rui.zhang@...el.com>, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] thermal: cpu_cooling: fix ptr_ret.cocci warnings

drivers/thermal/cpu_cooling.c:463:18-24: 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

CC: Javi Merino <javi.merino@....com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

 cpu_cooling.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -460,7 +460,7 @@ static int get_static_power(struct cpufr
 	if (voltage == 0) {
 		dev_warn_ratelimited(cpufreq_device->cpu_dev,
 				     "Failed to get voltage for frequency %lu: %ld\n",
-				     freq_hz, IS_ERR(opp) ? PTR_ERR(opp) : 0);
+				     freq_hz, PTR_ERR_OR_ZERO(opp));
 		return -EINVAL;
 	}
 
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