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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 2C356C433E6 for ; Wed, 27 Jan 2021 00:00:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E339A2068D for ; Wed, 27 Jan 2021 00:00:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389246AbhAZX5v (ORCPT ); Tue, 26 Jan 2021 18:57:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729688AbhAZRAA (ORCPT ); Tue, 26 Jan 2021 12:00:00 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 05B3BC061D7E for ; Tue, 26 Jan 2021 08:59:20 -0800 (PST) Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l4Rg8-00045s-5B; Tue, 26 Jan 2021 17:58:56 +0100 Received: from ukl by ptx.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1l4Rg4-0003hh-Ph; Tue, 26 Jan 2021 17:58:52 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Russell King , Eric Auger , Alex Williamson , Cornelia Huck Cc: linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, Arnd Bergmann Subject: [PATCH v3 3/5] vfio: platform: simplify device removal Date: Tue, 26 Jan 2021 17:58:33 +0100 Message-Id: <20210126165835.687514-4-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210126165835.687514-1-u.kleine-koenig@pengutronix.de> References: <20210126165835.687514-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::c0 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org vfio_platform_remove_common() cannot return non-NULL in vfio_amba_remove() as the latter is only called if vfio_amba_probe() returned success. Diagnosed-by: Arnd Bergmann Acked-by: Eric Auger Signed-off-by: Uwe Kleine-König --- drivers/vfio/platform/vfio_amba.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/vfio/platform/vfio_amba.c b/drivers/vfio/platform/vfio_amba.c index 9636a2afaecd..7b3ebf1558e1 100644 --- a/drivers/vfio/platform/vfio_amba.c +++ b/drivers/vfio/platform/vfio_amba.c @@ -73,16 +73,12 @@ static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id) static int vfio_amba_remove(struct amba_device *adev) { - struct vfio_platform_device *vdev; - - vdev = vfio_platform_remove_common(&adev->dev); - if (vdev) { - kfree(vdev->name); - kfree(vdev); - return 0; - } + struct vfio_platform_device *vdev = + vfio_platform_remove_common(&adev->dev); - return -EINVAL; + kfree(vdev->name); + kfree(vdev); + return 0; } static const struct amba_id pl330_ids[] = { -- 2.29.2