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=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 1443FC47082 for ; Tue, 8 Jun 2021 18:29:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8D57613BC for ; Tue, 8 Jun 2021 18:29:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234034AbhFHSa6 (ORCPT ); Tue, 8 Jun 2021 14:30:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:55612 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233920AbhFHSav (ORCPT ); Tue, 8 Jun 2021 14:30:51 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3ECB2613AE; Tue, 8 Jun 2021 18:28:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1623176938; bh=GvBZEAFzs/JsSVxO5y+ZXjEC47o0qYUnu9msmDXAorQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iUNv3wrYFIrCQbDs1PkPaQHosRtCBjglk2wYNH60CI9NIFbDUB5nkoJD68oS5JIFp AM5ajrKOw6KE5/BPvnIMJR1wYE7uxHdR46doFKNL1jCdYxkutZ92eQZxY3tuggYHhV Jl7pH06ida3tXZWgtAx2Li7UrD3Vrhk1iwbaSIJk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Max Gurtovoy , Alex Williamson , Sasha Levin Subject: [PATCH 4.4 03/23] vfio/platform: fix module_put call in error flow Date: Tue, 8 Jun 2021 20:26:55 +0200 Message-Id: <20210608175926.649210183@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210608175926.524658689@linuxfoundation.org> References: <20210608175926.524658689@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Max Gurtovoy [ Upstream commit dc51ff91cf2d1e9a2d941da483602f71d4a51472 ] The ->parent_module is the one that use in try_module_get. It should also be the one the we use in module_put during vfio_platform_open(). Fixes: 32a2d71c4e80 ("vfio: platform: introduce vfio-platform-base module") Signed-off-by: Max Gurtovoy Message-Id: <20210518192133.59195-1-mgurtovoy@nvidia.com> Signed-off-by: Alex Williamson Signed-off-by: Sasha Levin --- drivers/vfio/platform/vfio_platform_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c index e65b142d3422..9b170ce16011 100644 --- a/drivers/vfio/platform/vfio_platform_common.c +++ b/drivers/vfio/platform/vfio_platform_common.c @@ -192,7 +192,7 @@ err_irq: vfio_platform_regions_cleanup(vdev); err_reg: mutex_unlock(&driver_lock); - module_put(THIS_MODULE); + module_put(vdev->parent_module); return ret; } -- 2.30.2