Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933042AbcDEO5y (ORCPT ); Tue, 5 Apr 2016 10:57:54 -0400 Received: from mail-wm0-f46.google.com ([74.125.82.46]:34929 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758643AbcDEO4N (ORCPT ); Tue, 5 Apr 2016 10:56:13 -0400 From: =?UTF-8?q?Matias=20Bj=C3=B8rling?= To: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Matias=20Bj=C3=B8rling?= Subject: [PATCH 1/5] lightnvm: handle submit_io failure Date: Tue, 5 Apr 2016 16:55:27 +0200 Message-Id: <1459868131-15133-2-git-send-email-m@bjorling.me> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1459868131-15133-1-git-send-email-m@bjorling.me> References: <1459868131-15133-1-git-send-email-m@bjorling.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 851 Lines: 27 The device ->submit_io() callback might fail to submit I/O to device. In that case, the nvm_submit_ppa function should not wait for completion. Instead return the ->submit_io() error. Signed-off-by: Matias Bjørling --- drivers/lightnvm/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 0dc9a80..c2ef53a 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -351,6 +351,11 @@ int nvm_submit_ppa(struct nvm_dev *dev, struct ppa_addr *ppa, int nr_ppas, nvm_generic_to_addr_mode(dev, &rqd); ret = dev->ops->submit_io(dev, &rqd); + if (ret) { + nvm_free_rqd_ppalist(dev, &rqd); + bio_put(bio); + return ret; + } /* Prevent hang_check timer from firing at us during very long I/O */ hang_check = sysctl_hung_task_timeout_secs; -- 2.1.4