From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Heiko Carstens <heiko.carstens@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux390@de.ibm.com, linux-s390@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH] s390/process: Delete an unnecessary check before the function call "kfree"
Date: Wed, 24 Jun 2015 22:48:25 +0200 [thread overview]
Message-ID: <558B1799.8040003@users.sourceforge.net> (raw)
In-Reply-To: <5317A59D.4@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 24 Jun 2015 22:40:30 +0200
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>
---
arch/s390/kernel/process.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index dc5edc2..22e6448 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -81,8 +81,7 @@ void release_thread(struct task_struct *dead_task)
void arch_release_task_struct(struct task_struct *tsk)
{
- if (tsk->thread.vxrs)
- kfree(tsk->thread.vxrs);
+ kfree(tsk->thread.vxrs);
}
int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
--
2.4.4
next prev parent reply other threads:[~2015-06-24 20:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5307CAA2.8060406@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6>
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[not found] ` <alpine.DEB.2.10.1402241710370.2074@hadrien>
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[not found] ` <alpine.DEB.2.10.1402251014170.2080@hadrien>
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[not found] ` <alpine.DEB.2.10.1402251840450.7035@hadrien>
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[not found] ` <5317A59D.4@users.sourceforge.net>
2014-10-31 17:40 ` [PATCH 1/1] s390/net: Deletion of unnecessary checks before two function calls SF Markus Elfring
2014-11-03 9:50 ` Dan Carpenter
2014-11-03 15:55 ` SF Markus Elfring
2014-11-03 16:25 ` Dan Carpenter
2014-11-03 16:50 ` SF Markus Elfring
2014-11-03 17:02 ` Julia Lawall
2014-11-03 17:16 ` Dan Carpenter
2014-11-03 17:40 ` SF Markus Elfring
2015-01-19 18:55 ` [PATCH 1/1] " Brian Norris
2014-11-03 11:04 ` Ursula Braun
2014-11-03 16:10 ` SF Markus Elfring
2014-11-03 16:28 ` Dan Carpenter
[not found] ` <54687F1A.1010809@users.sourceforge.net>
[not found] ` <20141116111023.GA4905@mwanda>
[not found] ` <20141116111446.GA4956@mwanda>
[not found] ` <54688F15.9070703@users.sourceforge.net>
[not found] ` <20141117073408.GC4905@mwanda>
[not found] ` <5469B836.8030507@users.sourceforge.net>
[not found] ` <20141117134515.GE4905@mwanda>
2014-11-17 14:30 ` SF Markus Elfring
2014-11-22 14:05 ` [PATCH 1/1] s390/pci: Deletion of unnecessary checks before the function call "debug_unregister" SF Markus Elfring
2014-11-24 19:06 ` Sebastian Ott
2015-06-24 20:48 ` SF Markus Elfring [this message]
2015-06-25 10:02 ` [PATCH] s390/process: Delete an unnecessary check before the function call "kfree" walter harms
2015-06-25 11:37 ` Heiko Carstens
2015-11-16 13:23 ` [PATCH] SCSI-zfcp: Delete unnecessary checks before the function call "mempool_destroy" SF Markus Elfring
2015-12-04 17:57 ` Benjamin Block
2016-01-14 14:56 ` Steffen Maier
2015-11-16 14:15 ` [PATCH] s390: Delete unnecessary checks before the function call "debug_unregister" SF Markus Elfring
2015-11-16 15:30 ` Heiko Carstens
2015-11-17 19:20 ` [PATCH] s390-ctcm: Delete unnecessary checks before the function call "channel_remove" SF Markus Elfring
2015-11-25 9:37 ` Ursula Braun
2016-07-16 18:40 ` [PATCH] s390/pci: Delete an unnecessary check before the function call "pci_dev_put" SF Markus Elfring
2016-07-18 7:00 ` Martin Schwidefsky
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