From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH] net-ipv6: Delete an unnecessary check before the function call "free_percpu" Date: Thu, 02 Jul 2015 16:43:43 +0200 Message-ID: <55954E1F.6090205@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" , Julia Lawall To: Alexey Kuznetsov , "David S. Miller" , Hideaki YOSHIFUJI , James Morris , Patrick McHardy , netdev@vger.kernel.org Return-path: In-Reply-To: <5317A59D.4@users.sourceforge.net> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Markus Elfring Date: Thu, 2 Jul 2015 16:30:24 +0200 The free_percpu() 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 --- net/ipv6/route.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 1a1122a..6090969 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -369,10 +369,7 @@ static void ip6_dst_destroy(struct dst_entry *dst) struct inet6_dev *idev; dst_destroy_metrics_generic(dst); - - if (rt->rt6i_pcpu) - free_percpu(rt->rt6i_pcpu); - + free_percpu(rt->rt6i_pcpu); rt6_uncached_list_del(rt); idev = rt->rt6i_idev; -- 2.4.5