netdev - [patch] SUNRPC: remove an unneeded NULL check in xprt

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Message-ID: <20120201074620.GD22179@elgon.mountain>
Date:	Wed, 1 Feb 2012 10:46:20 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	Trond Myklebust <Trond.Myklebust@...app.com>,
	"David S. Miller" <davem@...emloft.net>, linux-nfs@...r.kernel.org,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] SUNRPC: remove an unneeded NULL check in xprt_connect()

We check "task->tk_rqstp" and then we dereference it without checking on
the next line.  The only caller is call_connect() and that has a check
which prevents it from calling xprt_connect() with a NULL.

                if (task->tk_status < 0)
                        return;

If "task->tk_rqstp" were NULL then "tk_status" would be -EAGAIN.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 839f6ef..efe5495 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -715,9 +715,7 @@ void xprt_connect(struct rpc_task *task)
 	if (xprt_connected(xprt))
 		xprt_release_write(xprt, task);
 	else {
-		if (task->tk_rqstp)
-			task->tk_rqstp->rq_bytes_sent = 0;
-
+		task->tk_rqstp->rq_bytes_sent = 0;
 		task->tk_timeout = task->tk_rqstp->rq_timeout;
 		rpc_sleep_on(&xprt->pending, task, xprt_connect_status);
 
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