Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932868Ab2HIOJO (ORCPT ); Thu, 9 Aug 2012 10:09:14 -0400 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:39017 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932262Ab2HIOJN (ORCPT ); Thu, 9 Aug 2012 10:09:13 -0400 Date: Thu, 9 Aug 2012 15:13:42 +0100 From: Alan Cox To: Marina Makienko Cc: "David S. Miller" , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, ldv-project@ispras.ru Subject: Re: [PATCH 03/13] ide: Potential null pointer dereference in ide_queue_pc_tail() Message-ID: <20120809151342.2941f851@pyramind.ukuu.org.uk> In-Reply-To: <1344520529-19164-1-git-send-email-makienko@ispras.ru> References: <1344520529-19164-1-git-send-email-makienko@ispras.ru> X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.8; x86_64-redhat-linux-gnu) Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAFVBMVEWysKsSBQMIAwIZCwj///8wIhxoRDXH9QHCAAABeUlEQVQ4jaXTvW7DIBAAYCQTzz2hdq+rdg494ZmBeE5KYHZjm/d/hJ6NfzBJpp5kRb5PHJwvMPMk2L9As5Y9AmYRBL+HAyJKeOU5aHRhsAAvORQ+UEgAvgddj/lwAXndw2laEDqA4x6KEBhjYRCg9tBFCOuJFxg2OKegbWjbsRTk8PPhKPD7HcRxB7cqhgBRp9Dcqs+B8v4CQvFdqeot3Kov6hBUn0AJitrzY+sgUuiA8i0r7+B3AfqKcN6t8M6HtqQ+AOoELCikgQSbgabKaJW3kn5lBs47JSGDhhLKDUh1UMipwwinMYPTBuIBjEclSaGZUk9hDlTb5sUTYN2SFFQuPe4Gox1X0FZOufjgBiV1Vls7b+GvK3SU4wfmcGo9rPPQzgIabfj4TYQo15k3bTHX9RIw/kniir5YbtJF4jkFG+dsDK1IgE413zAthU/vR2HVMmFUPIHTvF6jWCpFaGw/A3qWgnbxpSm9MSmY5b3pM1gvNc/gQfwBsGwF0VCtxZgAAAAASUVORK5CYII= Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 675 Lines: 15 On Thu, 9 Aug 2012 17:55:20 +0400 Marina Makienko wrote: > The function blk_get_request() can return NULL in some cases. There are > checks on it if function is called with argumetns one of which is > GFP_ATOMIC/GFP_NOIO/etc. If system couldn't find request > blk_get_request() return NULL. drivers/ide is obsolete and scheduled for removal. I'm not sure messing with it is remotely useful at this point ? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/