From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161332AbbKFMka (ORCPT ); Fri, 6 Nov 2015 07:40:30 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:59937 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752424AbbKFMk1 (ORCPT ); Fri, 6 Nov 2015 07:40:27 -0500 X-AuditID: cbfee68d-f79ae6d00000149a-f4-563c9fb8836e From: Vishnu Pratap Singh To: axboe@kernel.dk, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, jmoyer@redhat.com, minchan@kernel.org, ngupta@vflare.org, sergey.senozhatsky.work@gmail.com, davem@davemloft.net, neilb@suse.com, ulf.hansson@linaro.org, tiwai@suse.de, hare@suse.de, ming.lei@canonical.com, jarod@redhat.com, viro@zeniv.linux.org.uk, tj@kernel.org, adrian.hunter@intel.com, jonathanh@nvidia.com, grundler@chromium.org, linux-ide@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org Cc: cpgs@samsung.com, vishu13285@gmail.com, pintu.k@samsung.com, rohit.kr@samsung.com, Vishnu Pratap Singh Subject: [PATCH 8/8] ide/ide-probe.c: handle blk_register_region() return value Date: Fri, 06 Nov 2015 17:52:15 +0530 Message-id: <1446812535-10567-8-git-send-email-vishnu.ps@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1446812535-10567-1-git-send-email-vishnu.ps@samsung.com> References: <437969438-9181-1-git-send-email-vishnu.ps@samsung.com> <1446812535-10567-1-git-send-email-vishnu.ps@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWSbUhTYRTHe+69u7uOpNt09rjIUPRDQaZr6hOzKKh4viUUWULZsotac43N yaoPjZxGM1+yN5mG5SzX1KxtlMroZZomy8pqUaSiMopJKUxqNrOaW305nJff+Z9z4DCk0E+J mWJlKadWyhVJtIDqiJWe2tDTnL0vzfVAgIa8HTRq6gqZ9rFaGvlc61DTKwOFpvvnCeRsqSfQ 1QtvABoOeihkMLVQaKB7ikBve5to1P+nFqBzzb0A3f4+y0e9kwE+8t8/iO4ZTHxUE+jjoy/l FRSaqguJ+OxfCRRsewbQYGcuerU4yEOXa8YAclgmedtWY5O+msaN+hEKO+58JHCPaYyPzU4f gd8Oa7HNep7Go++dNH7esEDh6vIZGs8+8tC4xmEFuMvhobDdfRr3+O08PGdLyFmZJ8g+yimK yzj1xq2HBUU/z/4AqhmB7mGgk9SDRcYIohjISqH+Wz0Z8ePg6/Eu2ggEjJC1ANjutvL/Q/3l LVSkcAvAb8EJMhKcJWDlxAixRNFsOrzX2M9fKsSyCyRsuFEbDkjWAOAV990wFcPuhlVVXp4R MAzFpkCzHS+lo9mdcMLbTEfGJcChgUthJIrdBSf7wp1C9gz8VdcdloTsHwaOVjwIr0exLPxx yUUt8ZBdA21P/p0TD59aPlB1IOYGWGYFIk5VoNIcKVSnp2rkJRqtsjC14ESJDYRewf37c3U3 +PRE5gIsA5KWR6e1yfYJefIyzckSF8gITbhIikUFJ0LfoyzNT9+UKUEZ0oxNkqzNmUmrohPF P/cI2UJ5KXec41ScOl+tVXAaFyCYKLEeiNc649ZUmq7r7u/X7aiR2wtVexePau0yj+1maqKn cTtZETP3Pdmsr5cc68i9ukKat2WOSglO5/gyhrKuGdP2+rfPJyQGOJGsYd6bb3dWKswrv65v Eppb3cmteNYheLfrd7xoQjiY92Lkul83bjnQeM0gNUCJLnjn8aGXtCWJ0hTJ09eTao38Lwfn k9UFAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPKsWRmVeSWpSXmKPExsVy+t9jAd0d823CDLo6LS1OPlnDZjFnPZBY fbefzeLlIU2LOedbWCxeHfnBZLFn0SQmi2k9lxgtzv66ymLRMmsRi8WxHY+YLC7vmsNmceR/ P6NF+/xdjBbLvr5nt9j18Du7xaeNsRYbWmaxW/R9P8xu8by5lcXi0QSgIS83v2Gy+LX8KKPF 8bXhFuf/Hme1mNJ3l9Fiy4qHrA7SHrMaetk8ZjdcZPHYsvImk8fOWXfZPRbvecnkcflsqcem VZ1sHneu7WHzODHjN4tHb/M7No/3+66yefRtWcXosX7LVRaPzaerPXZ+2szq8XmTXIBgVAOj TUZqYkpqkUJqXnJ+SmZeuq2Sd3C8c7ypmYGhrqGlhbmSQl5ibqqtkotPgK5bZg4wdJQUyhJz SoFCAYnFxUr6dpgmhIa46VrANEbo+oYEwfUYGaCBhDWMGT+bvjEWvOOq2P59LXMD41+OLkZO DgkBE4kjzYtYIGwxiQv31rN1MXJxCAksZZR4++sBM4TTxCTR9uAiE0gVm4ChxIbZR9hBEiIC v5klZizoB3OYBVoYJaaeXgdWJSzgL9Hd/YS1i5GDg0VAVWLxZg+QMK+Aq8SDJ/PZINbJSZw8 NhmshFPATeLhYbBOIYF6iT8TdrBPYORdwMiwilEitSC5oDgpPdcoL7Vcrzgxt7g0L10vOT93 EyM48TyT3sF4eJf7IUYBDkYlHl6D5dZhQqyJZcWVuYcYJTiYlUR45ZhtwoR4UxIrq1KL8uOL SnNSiw8xmgKdNZFZSjQ5H5gU80riDY1NzE2NTS1NLEzMLJXEefU9jcKEBNITS1KzU1MLUotg +pg4OKUaGBmmLey0416jI+YseuVpwZsW9VeW+zY/55s1RbpnavGi5nUzjuw9JcvCp6Yy5cxp xqhDN88u924+n8PG/3L+RefPvBdilK6n77VybPvBKVB/10rqGuMf8Vn7bdVm3etNSuG4qvf5 7NLnTnnuBql/K47O37De2vdNXco81V9MDO82LzUu4+P4v0OJpTgj0VCLuag4EQAOInxyUgMA AA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch handles blk_register_region() return value. Earlier blk_register_region() function doesn't handle error cases, now it is added, so the callers of this function should also handle it. Verfied on X86 based ubuntu machine. This patch depends on [PATCH 1/8] block/genhd.c: Add error handling Signed-off-by: Vishnu Pratap Singh --- drivers/ide/ide-probe.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 0b63fac..651eb05 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -917,9 +917,9 @@ static int exact_lock(dev_t dev, void *data) return 0; } -void ide_register_region(struct gendisk *disk) +int ide_register_region(struct gendisk *disk) { - blk_register_region(MKDEV(disk->major, disk->first_minor), + return blk_register_region(MKDEV(disk->major, disk->first_minor), disk->minors, NULL, exact_match, exact_lock, disk); } @@ -988,8 +988,9 @@ static int hwif_init(ide_hwif_t *hwif) goto out; } - blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS, - THIS_MODULE, ata_probe, ata_lock, hwif); + if (blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS, + THIS_MODULE, ata_probe, ata_lock, hwif)) + goto out; return 1; out: -- 1.9.1