From: Dave Jones <davej@codemonkey.org.uk>
Date: Wed, 28 Dec 2016 16:53:18 +0000 (-0500)
Subject: ipv6: remove unnecessary inet6_sk check
X-Git-Tag: v4.11-rc1~94^2~142
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=de8499cee59465cfa6135591d665a065539d456b;p=karo-tx-linux.git

ipv6: remove unnecessary inet6_sk check

np is already assigned in the variable declaration of ping_v6_sendmsg.
At this point, we have already dereferenced np several times, so the
NULL check is also redundant.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index e1f8b34d7a2e..9b522fa90e6d 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -126,12 +126,6 @@ static int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		return PTR_ERR(dst);
 	rt = (struct rt6_info *) dst;
 
-	np = inet6_sk(sk);
-	if (!np) {
-		err = -EBADF;
-		goto dst_err_out;
-	}
-
 	if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
 		fl6.flowi6_oif = np->mcast_oif;
 	else if (!fl6.flowi6_oif)
@@ -166,7 +160,6 @@ static int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	}
 	release_sock(sk);
 
-dst_err_out:
 	dst_release(dst);
 
 	if (err)