From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932885Ab3BSNzI (ORCPT ); Tue, 19 Feb 2013 08:55:08 -0500 Received: from mail.skyhub.de ([78.46.96.112]:33236 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932795Ab3BSNzE (ORCPT ); Tue, 19 Feb 2013 08:55:04 -0500 Date: Tue, 19 Feb 2013 14:55:00 +0100 From: Borislav Petkov To: Mauro Carvalho Chehab Cc: balbi@ti.com, Greg KH , Linux Kernel Mailing List , Steven Rostedt , Frederic Weisbecker , Ingo Molnar , JBottomley@parallels.com, linux-scsi@vger.kernel.org, davem@davemloft.net, netdev@vger.kernel.org, Doug Thompson , linux-edac@vger.kernel.org, rjw@sisk.pl, linux-pm@vger.kernel.org Subject: Re: SYSFS "errors" Message-ID: <20130219135500.GI26623@pd.tnic> Mail-Followup-To: Borislav Petkov , Mauro Carvalho Chehab , balbi@ti.com, Greg KH , Linux Kernel Mailing List , Steven Rostedt , Frederic Weisbecker , Ingo Molnar , JBottomley@parallels.com, linux-scsi@vger.kernel.org, davem@davemloft.net, netdev@vger.kernel.org, Doug Thompson , linux-edac@vger.kernel.org, rjw@sisk.pl, linux-pm@vger.kernel.org References: <20130219081149.46972f56@redhat.com> <20130219114345.GA26623@pd.tnic> <20130219091610.2b746a30@redhat.com> <20130219123502.GD26623@pd.tnic> <20130219094640.2abf1a66@redhat.com> <20130219130626.GE26623@pd.tnic> <20130219131500.GW23197@arwen.pp.htv.fi> <20130219132853.GG26623@pd.tnic> <20130219133809.GA4390@arwen.pp.htv.fi> <20130219105048.198e2cfd@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20130219105048.198e2cfd@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 19, 2013 at 10:50:48AM -0300, Mauro Carvalho Chehab wrote: > It is actually worse, as if someone is using a C code to open the device > with > fp = open ("/sys/devices/system/edac/mc/mc0/sdram_scrub_rate", O_RDWR); > > It will now start to fail if the device doesn't have both permissions. That's fine - you're supposed to handle open()'s retval properly anyway. See my other mail. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --