Subject: [PATCH] net-ipv6: Delete an unnecessary check before the function call "free_percpu"

From: SF Markus Elfring <[email-masked]>
Date: Thu, 02 Jul 2015 16:43:43 +0200

From: Markus Elfring <[email-masked]>
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 <[email-masked]>
---
 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