netdev - [patch] ems_usb: cleanup: remove uneeded check

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Message-ID: <20100306111138.GH4958@bicker>
Date:	Sat, 6 Mar 2010 14:11:38 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Urs Thuermann <urs.thuermann@...kswagen.de>
Cc:	Oliver Hartkopp <oliver.hartkopp@...kswagen.de>,
	"David S. Miller" <davem@...emloft.net>,
	Wolfgang Grandegger <wg@...ndegger.com>,
	Sebastian Haas <haas@...-wuensche.com>,
	Kurt Van Dijck <kurt.van.dijck@....be>,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] ems_usb: cleanup: remove uneeded check

"skb" is alway non-null here, but even if it were null the check isn't
needed because dev_kfree_skb() can handle it.

This eliminates a smatch warning about dereferencing a variable before
checking that it is non-null.

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

diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 11c8784..3345109 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -876,9 +876,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
 	return NETDEV_TX_OK;
 
 nomem:
-	if (skb)
-		dev_kfree_skb(skb);
-
+	dev_kfree_skb(skb);
 	stats->tx_dropped++;
 
 	return NETDEV_TX_OK;
--
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