[PATCH] CPPC-CPUFreq: Delete an unnecessary check before the function call "kfree"

From	SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups	linux.kernel
Subject	[PATCH] CPPC-CPUFreq: Delete an unnecessary check before the function call "kfree"
Date	2015-11-05 21:20 +0100
Message-ID	<qrzaO-2TZ-19@gated-at.bofh.it> (permalink)
References	(12 earlier) <mSsDN-4wa-59@gated-at.bofh.it> <mSsDN-4wa-61@gated-at.bofh.it> <mSsDN-4wa-63@gated-at.bofh.it> <mSsDN-4wa-65@gated-at.bofh.it> <mSsDN-4wa-33@gated-at.bofh.it>
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 5 Nov 2015 21:10:29 +0100

The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/cpufreq/cppc_cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index 93c219f..e8cb334 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -166,8 +166,7 @@ static int __init cppc_cpufreq_init(void)
 
 out:
 	for_each_possible_cpu(i)
-		if (all_cpu_data[i])
-			kfree(all_cpu_data[i]);
+		kfree(all_cpu_data[i]);
 
 	kfree(all_cpu_data);
 	return -ENODEV;
-- 
2.6.2

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[PATCH] CPPC-CPUFreq: Delete an unnecessary check before the function  call "kfree" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-05 21:20 +0100
  Re: [PATCH] CPPC-CPUFreq: Delete an unnecessary check before the  function call "kfree" Viresh Kumar <viresh.kumar@linaro.org> - 2015-11-06 02:50 +0100
    Re: [PATCH] CPPC-CPUFreq: Delete an unnecessary check before the function call "kfree" "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-11-07 01:50 +0100

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