Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753457Ab2H0JDy (ORCPT ); Mon, 27 Aug 2012 05:03:54 -0400 Received: from e06smtp11.uk.ibm.com ([195.75.94.107]:42445 "EHLO e06smtp11.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752382Ab2H0JDw (ORCPT ); Mon, 27 Aug 2012 05:03:52 -0400 Date: Mon, 27 Aug 2012 11:03:55 +0200 From: Heiko Carstens To: Wanlong Gao , Stefan Weinhuber Cc: linux-kernel@vger.kernel.org, Martin Schwidefsky , linux390@de.ibm.com, "open list:S390" Subject: Re: [PATCH 5/5] s390:block:fix up ENOIOCTLCMD error handling Message-ID: <20120827090354.GA5840@osiris.de.ibm.com> References: <1346052196-32682-1-git-send-email-gaowanlong@cn.fujitsu.com> <1346052196-32682-6-git-send-email-gaowanlong@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1346052196-32682-6-git-send-email-gaowanlong@cn.fujitsu.com> User-Agent: Mutt/1.5.21 (2010-09-15) x-cbid: 12082709-5024-0000-0000-0000039DA356 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2694 Lines: 82 On Mon, Aug 27, 2012 at 03:23:16PM +0800, Wanlong Gao wrote: > At commit 07d106d0, Linus pointed out that ENOIOCTLCMD should be > translated as ENOTTY to user mode. > [...] > Signed-off-by: Wanlong Gao > --- > drivers/s390/block/dasd_ioctl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c > index cceae70..809a89b 100644 > --- a/drivers/s390/block/dasd_ioctl.c > +++ b/drivers/s390/block/dasd_ioctl.c > @@ -501,7 +501,7 @@ int dasd_ioctl(struct block_device *bdev, fmode_t mode, > if (base->discipline->ioctl) { > rc = base->discipline->ioctl(block, cmd, argp); > if (rc == -ENOIOCTLCMD) > - rc = -EINVAL; > + rc = -ENOTTY; > } else > rc = -EINVAL; > } Thanks, but you missed the else path. I'm going to commit the patch below unless Stefan has any objections: >From dac16bd8b314dc6f3f4e6815feab199fdfc8cddd Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 27 Aug 2012 10:59:42 +0200 Subject: [PATCH] s390/dasd: fix ioctl return value For unimplemented ioctls the dasd driver should return -ENOTTY. Reported-by: Wanlong Gao Signed-off-by: Heiko Carstens --- drivers/s390/block/dasd_eckd.c | 2 +- drivers/s390/block/dasd_ioctl.c | 7 ++----- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 40a826a..2fb2b9e 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -3804,7 +3804,7 @@ dasd_eckd_ioctl(struct dasd_block *block, unsigned int cmd, void __user *argp) case BIODASDSYMMIO: return dasd_symm_io(device, argp); default: - return -ENOIOCTLCMD; + return -ENOTTY; } } diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index cceae70..654c692 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -498,12 +498,9 @@ int dasd_ioctl(struct block_device *bdev, fmode_t mode, break; default: /* if the discipline has an ioctl method try it. */ - if (base->discipline->ioctl) { + rc = -ENOTTY; + if (base->discipline->ioctl) rc = base->discipline->ioctl(block, cmd, argp); - if (rc == -ENOIOCTLCMD) - rc = -EINVAL; - } else - rc = -EINVAL; } dasd_put_device(base); return rc; -- 1.7.11.5 -- 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/