From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E073C433DF for ; Wed, 19 Aug 2020 02:44:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0CAA6207BB for ; Wed, 19 Aug 2020 02:44:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597805093; bh=mSmoFxvjpOFQ3BjF+LJF9gJ4ZExsUtOydObSByBEhTY=; h=Date:From:To:Subject:In-Reply-To:Reply-To:List-ID:From; b=0wVhxmbnTKK1yeEEz6CDeoE/gr6Xsq7Zit7LRGlH4u/ixQcL9nHJqws321vp5td3M o2SqC8rb6yLXF+L+H6F71waWnGSAf0x4ZKlcrCdef0kYny5nIoXcXhtwDXIMxPCm3b ODvbCO+HWlSw3UWsO9seya/VwnKWIVxwxl13l1Ls= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726968AbgHSCow (ORCPT ); Tue, 18 Aug 2020 22:44:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:56442 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726959AbgHSCov (ORCPT ); Tue, 18 Aug 2020 22:44:51 -0400 Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2F64120639; Wed, 19 Aug 2020 02:44:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597805091; bh=mSmoFxvjpOFQ3BjF+LJF9gJ4ZExsUtOydObSByBEhTY=; h=Date:From:To:Subject:In-Reply-To:From; b=NHQS2AVyVZ21ThO2OX9es8cgtNpQVJ9JBh/THi7qBlEdjP6flWFiqFuFLcDPS4e+x TwN45PDXglfjmYKLe+mvJVeK06XCBHe4rMIZkY7wdMqE/NZYzi3+60aYAUez1LMwWA RL90DJsK3sNSH/vg4ew66UwH1T8Ss/MGRgD60sSQ= Date: Tue, 18 Aug 2020 19:44:50 -0700 From: Andrew Morton To: akpm@linux-foundation.org, dan.j.williams@intel.com, dave.jiang@intel.com, ira.weiny@intel.com, mm-commits@vger.kernel.org, thunder.leizhen@huawei.com, vishal.l.verma@intel.com Subject: + device-dax-fix-mismatches-of-request_mem_region.patch added to -mm tree Message-ID: <20200819024450.FTaIjT3Cg%akpm@linux-foundation.org> In-Reply-To: <20200814172939.55d6d80b6e21e4241f1ee1f3@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: mm-commits-owner@vger.kernel.org Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: drivers/dax/kmem.c: fix mismatches of request_mem_region() has been added to the -mm tree. Its filename is device-dax-fix-mismatches-of-request_mem_region.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/device-dax-fix-mismatches-of-request_mem_region.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/device-dax-fix-mismatches-of-request_mem_region.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Zhen Lei Subject: drivers/dax/kmem.c: fix mismatches of request_mem_region() For neatness's sake, The resources allocated by request_mem_region() should be freed with release_mem_region(). These two functions are paired. Link: http://lkml.kernel.org/r/20200817065926.2239-1-thunder.leizhen@huawei.com Signed-off-by: Zhen Lei Reviewed-by: Andrew Morton Cc: Dan Williams Cc: Vishal Verma Cc: Dave Jiang Cc: Ira Weiny Signed-off-by: Andrew Morton --- drivers/dax/kmem.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) --- a/drivers/dax/kmem.c~device-dax-fix-mismatches-of-request_mem_region +++ a/drivers/dax/kmem.c @@ -82,8 +82,7 @@ int dev_dax_kmem_probe(struct device *de rc = add_memory_driver_managed(numa_node, new_res->start, resource_size(new_res), kmem_name); if (rc) { - release_resource(new_res); - kfree(new_res); + release_mem_region(kmem_start, kmem_size); kfree(new_res_name); return rc; } @@ -118,8 +117,7 @@ static int dev_dax_kmem_remove(struct de } /* Release and free dax resources */ - release_resource(res); - kfree(res); + release_mem_region(kmem_start, kmem_size); kfree(res_name); dev_dax->dax_kmem_res = NULL; _ Patches currently in -mm which might be from thunder.leizhen@huawei.com are device-dax-fix-mismatches-of-request_mem_region.patch