netdev - bna: potential null dereference

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Message-ID: <4C8242CA.3020906@gmail.com>
Date:	Sat, 04 Sep 2010 14:59:54 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	ddutt@...cade.com
CC:	rmody@...cade.com, "David S. Miller" <davem@...emloft.net>,
	ML netdev <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: bna: potential null dereference

Hi,

stanse found a potential null dereference:
bnad_cb_tx_cleanup
  -> struct bnad_unmap_q *unmap_q = tcb->unmap_q;
  -> -- tcb cannot be null now --
  -> if (!tcb || (!tcb->unmap_q))

The thing is I have no idea whether the second parameter of cleanup may
be null (move assignment after the check) or not (remove the check)

Could you fix that?

thanks,
-- 
js
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