From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752078AbcFGCFX (ORCPT ); Mon, 6 Jun 2016 22:05:23 -0400 Received: from mail-oi0-f65.google.com ([209.85.218.65]:35320 "EHLO mail-oi0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751797AbcFGCFW (ORCPT ); Mon, 6 Jun 2016 22:05:22 -0400 From: Minfei Huang To: axboe@fb.com, ming.lei@canonical.com, viro@zeniv.linux.org.uk, jmoyer@redhat.com, sagig@mellanox.com, mszeredi@suse.cz Cc: linux-kernel@vger.kernel.org, Minfei Huang Subject: [PATCH] loop: Make user notify for adding loop device failed Date: Tue, 7 Jun 2016 10:05:15 +0800 Message-Id: <1465265115-12479-1-git-send-email-mnghuan@gmail.com> X-Mailer: git-send-email 2.7.4 (Apple Git-66) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is no error number returned if loop driver fails in function alloc_disk to add new loop device. Add a correct error number to make user notify in this case. Signed-off-by: Minfei Huang --- drivers/block/loop.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 1fa8cc2..2caaf6f 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1765,6 +1765,7 @@ static int loop_add(struct loop_device **l, int i) */ queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, lo->lo_queue); + err = -ENOMEM; disk = lo->lo_disk = alloc_disk(1 << part_shift); if (!disk) goto out_free_queue; -- 2.7.4 (Apple Git-66)