linux-kernel - [patch] caif: remove unneeded null check in caif

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Message-ID: <20100522204342.GV22515@bicker>
Date:	Sat, 22 May 2010 22:43:42 +0200
From:	Dan Carpenter <error27@...il.com>
To:	Sjur Braendeland <sjur.brandeland@...ricsson.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] caif: remove unneeded null check in caif_connect()

We already dereferenced uaddr towards the start of the function when we
checked that "uaddr->sa_family != AF_CAIF".  Both the check here and the
earlier check were added in bece7b2398d0: "caif: Rewritten socket
implementation".  Before that patch, we assumed that we recieved a valid
pointer for uaddr, and based on that, I have removed this check.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index c3a70c5..bd67bb3 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -890,8 +890,7 @@ static int caif_connect(struct socket *sock, struct sockaddr *uaddr,
 	sk_stream_kill_queues(&cf_sk->sk);
 
 	err = -EINVAL;
-	if (addr_len != sizeof(struct sockaddr_caif) ||
-		!uaddr)
+	if (addr_len != sizeof(struct sockaddr_caif))
 		goto out;
 
 	memcpy(&cf_sk->conn_req.sockaddr, uaddr,
--
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