From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: sky2: in free_buffers() do proper checks before call of rx_clean() Date: Wed, 04 Apr 2012 18:07:06 -0400 (EDT) Message-ID: <20120404.180706.345415198105146886.davem@davemloft.net> References: <20120403001327.GB10227@Neptun> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: shemminger@vyatta.com, mlindner@marvell.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: LinoSanfilippo@gmx.de Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:50312 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757028Ab2DDWHS (ORCPT ); Wed, 4 Apr 2012 18:07:18 -0400 In-Reply-To: <20120403001327.GB10227@Neptun> Sender: netdev-owner@vger.kernel.org List-ID: From: Lino Sanfilippo Date: Tue, 3 Apr 2012 02:13:27 +0200 > In sky2_open() free_buffers() is called in case that alloc_buffers() failed. > Here we do the check for sky2->rx_le too late, since we already called > rx_clean() which accessed rx_le. Furthermore we lack a check for sky2->rx_ring > which is also accessed by rx_clean(). > > With this patch both sky2->rx_le and sky2->rx_ring are checked before > alloc_buffers() is called. > > Signed-off-by: Lino Sanfilippo Ping?