From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH 1/1] fs-namespace: Deletion of unnecessary checks before the function call "mntput" Date: Tue, 18 Nov 2014 12:20:42 +0100 Message-ID: <546B2B8A.4090809@users.sourceforge.net> References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.so urceforge.net> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: LKML , kernel-janitors@vger.kernel.org, Coccinelle To: Alexander Viro , linux-fsdevel@vger.kernel.org Return-path: In-Reply-To: <5317A59D.4@users.sourceforge.net> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org From: Markus Elfring Date: Tue, 18 Nov 2014 12:10:43 +0100 The mntput() 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 --- fs/namespace.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index 550dbff..3b3710e 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -2615,10 +2615,8 @@ struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns, } namespace_unlock(); - if (rootmnt) - mntput(rootmnt); - if (pwdmnt) - mntput(pwdmnt); + mntput(rootmnt); + mntput(pwdmnt); return new_ns; } -- 2.1.3