From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vishnu Pratap Singh Subject: [PATCH 6/8] md/md.c: handle blk_register_region() return value Date: Fri, 06 Nov 2015 17:52:13 +0530 Message-ID: <1446812535-10567-6-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> Return-path: In-reply-to: <1446812535-10567-1-git-send-email-vishnu.ps@samsung.com> Sender: linux-mmc-owner@vger.kernel.org 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 List-Id: linux-raid.ids 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/md/md.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index a71b36f..244bb26 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8940,10 +8940,12 @@ static int __init md_init(void) goto err_mdp; mdp_major = ret; - blk_register_region(MKDEV(MD_MAJOR, 0), 512, THIS_MODULE, - md_probe, NULL, NULL); - blk_register_region(MKDEV(mdp_major, 0), 1UL<