netdev - [patch] net/sched: remove unneeded NULL check

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Message-ID: <20100814210949.GB645@bicker>
Date:	Sat, 14 Aug 2010 23:09:49 +0200
From:	Dan Carpenter <error27@...il.com>
To:	Jamal Hadi Salim <hadi@...erus.ca>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Patrick McHardy <kaber@...sh.net>,
	Jarek Poplawski <jarkao2@...il.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] net/sched: remove unneeded NULL check

There is no need to check "s".  nla_data() doesn't return NULL.  Also we
already dereferenced "s" at this point so it would have oopsed ealier if
it were NULL.

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

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 408eea7..6fb3d41 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -360,7 +360,7 @@ static struct qdisc_size_table *qdisc_get_stab(struct nlattr *opt)
 		tsize = nla_len(tb[TCA_STAB_DATA]) / sizeof(u16);
 	}
 
-	if (!s || tsize != s->tsize || (!tab && tsize > 0))
+	if (tsize != s->tsize || (!tab && tsize > 0))
 		return ERR_PTR(-EINVAL);
 
 	spin_lock(&qdisc_stab_lock);
--
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