Path: csiph.com!aioe.org!news.servidellagleba.it!bofh.it!news.nic.it!robomod From: Minfei Huang Newsgroups: linux.kernel Subject: [PATCH] loop: Make user notify for adding loop device failed Date: Tue, 07 Jun 2016 04:10:01 +0200 Message-ID: Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=6nnMYz6sT8693AcOtNsP1JfAYB2fKaWDxH+cWUNa0Jw=; b=ChBI081w3smWTgwy+4TRwqzKDsFw/dxFEYC5PiIN/06AWNzUHXk5yf3PGQXx/Qnl2z cH/SpAoN4ZCq0QyjVz6ucFOgKBavJAcs7FnHEs8GFxfYQrhyhsL9aORNaGICLho81Xf3 PnNoRUi44La6tpMpnUVfMnMCFnPtG80rWRzokwCWgUP/aE0+G2hAimVJhFBMMyURFjp4 mbgKO9zJPpoNac91ijsPScST451P0AcUrZgRxh6fzBq9rKVIZMAcGR0xsXliS/Vo7lCV RbKV9KJIOGH23dq/grxpbojZv3ZVufxTHaCgyZne/lwXU0zfDLSk57ht0yHImyCdPhuY 2UHQ== X-Google-Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=6nnMYz6sT8693AcOtNsP1JfAYB2fKaWDxH+cWUNa0Jw=; b=jOVbvwFnbzl9vSvapPEsftOA6k9vTDAO4XzpRkXRbAve1Z9fSVMPyVjVelS60TfE8G 0qYBJMhtFz2fO93aoTmEiTVELNcphE/T6+GOCDI7lkDAMRm4IEn1obBUUGsgByKP8JZ3 fyeFIK1CY+31mqa9TohBpB739hMNNSAJCRGWfLvH2bLmNJIb2Fa6nXUTy0orVf9j3pU7 kU48L/lL3wmXCgCWGCLWjpVShus0nLy5mkzQ+5Ezr+2nz1pb6lShq/RX2z/HdUV5eec2 tlU2S1CcxDxYHyjo9neRJY7easDyD2shMIHWnU1VAsIe43djm0w3/76QFkhR7T0a0vsd UtIQ== X-Gm-Message-State: ALyK8tIluezSs/xjpVOZXJWIHJ77IybHpoSOtO9HOI3TSZaZMgLYvQ9p8r4HJ6nYS9Cmpg== X-Received: by 10.157.16.70 with SMTP id o6mr4379020oto.102.1465265121393; Mon, 06 Jun 2016 19:05:21 -0700 (PDT) X-Mailer: git-send-email 2.7.4 (Apple Git-66) Sender: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 23 Organization: linux.* mail to news gateway X-Original-Cc: linux-kernel@vger.kernel.org, Minfei Huang X-Original-Date: Tue, 7 Jun 2016 10:05:15 +0800 X-Original-Message-ID: <1465265115-12479-1-git-send-email-mnghuan@gmail.com> X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1415623 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)