Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755509AbaGHBD2 (ORCPT ); Mon, 7 Jul 2014 21:03:28 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:55226 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753240AbaGGXyB (ORCPT ); Mon, 7 Jul 2014 19:54:01 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Joe Thornber , Naohiro Aota , Mike Snitzer Subject: [PATCH 3.15 063/122] dm era: check for a non-NULL metadata object before closing it Date: Mon, 7 Jul 2014 16:57:05 -0700 Message-Id: <20140707235736.162813379@linuxfoundation.org> X-Mailer: git-send-email 2.0.0.254.g50f84e3 In-Reply-To: <20140707235734.234226883@linuxfoundation.org> References: <20140707235734.234226883@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joe Thornber commit 989f26f5ad308f40a95f280bf9cd75e558d4f18d upstream. era_ctr() may call era_destroy() before era->md is initialized so era_destory() must only close the metadata object if it is not NULL. Signed-off-by: Joe Thornber Signed-off-by: Naohiro Aota Signed-off-by: Mike Snitzer Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-era-target.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/md/dm-era-target.c +++ b/drivers/md/dm-era-target.c @@ -1391,7 +1391,8 @@ static int era_is_congested(struct dm_ta static void era_destroy(struct era *era) { - metadata_close(era->md); + if (era->md) + metadata_close(era->md); if (era->wq) destroy_workqueue(era->wq); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/