From: David S. Miller <davem@davemloft.net>
Date: Sat, 19 May 2012 04:51:04 +0000 (-0400)
Subject: ipx: Remove spurious NULL checking in ipx_ioctl().
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=32e9072b92a1c556a303d8d0e0d64feb667e601d;p=linux-beck.git

ipx: Remove spurious NULL checking in ipx_ioctl().

We already unconditionally dereference 'sk' via lock_sock(sk) earlier
in this function, and our caller (sock_do_ioctl()) makes takes similar
liberties.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 824d4a3338ae..dfd6faaf0ea7 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1901,9 +1901,7 @@ static int ipx_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 			      (const unsigned short __user *)argp);
 		break;
 	case SIOCGSTAMP:
-		rc = -EINVAL;
-		if (sk)
-			rc = sock_get_timestamp(sk, argp);
+		rc = sock_get_timestamp(sk, argp);
 		break;
 	case SIOCGIFDSTADDR:
 	case SIOCSIFDSTADDR: