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From: Dan Carpenter <error27@gmail.com>
To: kernel-janitors@vger.kernel.org
Subject: [patch] ems_usb: cleanup: remove uneeded check
Date: Sat, 06 Mar 2010 11:11:38 +0000	[thread overview]
Message-ID: <20100306111138.GH4958@bicker> (raw)

"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@gmail.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;

             reply	other threads:[~2010-03-06 11:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-06 11:11 Dan Carpenter [this message]
2010-03-07 23:28 ` [patch] ems_usb: cleanup: remove uneeded check David Miller

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