From patchwork Thu Jan 19 23:12:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 13108949 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0AE7BC004D4 for ; Thu, 19 Jan 2023 23:15:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=QYYjrP/cDQjzI5cvWl9kmArpkaem6SMb9+wJzmT8dFw=; b=G9L1y96ZBlqwKn 9B4mxc/iliaunlRbh1STr/bsPL2o9h5j2DIaijCJMFzHjkGwH6c7DTOEcyckuEqT9GQX36VHoWbvd OMjXCIcmi1VFfh+pWxhI8+2o5mIvQHBtRy42fmP4PbK332aH5XfvKLN3S7cYhHs8zyXR+rwakkTq7 Ljx+EH1nHAU8+xJ+asxOugN9iOoF6ClNDKmfVGatFinQC/NCF5oBXLwHsIq3wzZvQwY8WYgLvi9Yo uuvaVCFzLWjmbay4EDZst/5mbvsFYh1qa9VTnT6WL4yamCnbpcITJGxHxMDqTJYjpRa3qQe5o0y81 5+jmW76LKuCw/PSjwB3A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pIe6E-007Z7C-2G; Thu, 19 Jan 2023 23:13:38 +0000 Received: from mail-pf1-x436.google.com ([2607:f8b0:4864:20::436]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pIe5r-007Z3M-SY; Thu, 19 Jan 2023 23:13:17 +0000 Received: by mail-pf1-x436.google.com with SMTP id z3so2723323pfb.2; Thu, 19 Jan 2023 15:12:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=2RYDaQakvnKQMHYWcGZyFzWZGbJWcAlfnMO9tuHV3GY=; b=epTqo8/GH4R2BQ1E41zW0K2lvL4E85jVpNh1kazLjYlZomZHpWFKvEFc4KP/4voUKd oDhHR+qTm44ZJMscqbp0SfNGv8dpLTjJrGf6zc9u+k8MfUxoYkzAysCdAXkEfhNF6cvx Yusdvp/Sk+TielCZ2tVy0bscV2eA4K9apqu6MUQS/L9VxcZM8E/baAL3equmOEof5AQ4 saznbLELNR8lgHkg19njvaR0GnJTyBSF7VdEizP2eN9BDYX6R/hrdTgzNMstSSK+Lf4d V/yV6c4o9Bi6TZf5W4nbd+Ypxyd1T+J47XylPXDPYDy4kBBagHLd6Vc5ULBejQ4lDZQw rPcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=2RYDaQakvnKQMHYWcGZyFzWZGbJWcAlfnMO9tuHV3GY=; b=frzhZsWhsEynP+smLNBw5S32j3lZB4Bj0IQNXbBp8l/SH2r3nJM/BvrbAyvVdpT5gT bp9C9atkuNOmRN4JaEHsQuI1san06SxqzGagCrCNUQN97AA/dfQ7XAsaqx/F58Pi9RH7 UUIxY89TXplTY2kcJ8tSFllPhKBAxe/nrjXO18EYqp+YK138pXJxACYF+QAYzFq9p9/W /Z616ftNW8HH/oBC99LgYUO+uZJlBGrX7+tg/aA+gaDOXyklfYbw/Fu3GC0H9XkZZmuW lVeTvTAAUKbQ427Ni1lw0rAjKVq+z5/GMtjhsNeKVmdJ+yjDxOqq0tq5H/9iN6sPUssr Wqaw== X-Gm-Message-State: AFqh2kq/ZjH5TZuz7kEHrWaePdbt1MUpqvDdLt9g+hklBsmljtb9cbA1 w/GDBfEt9zSEP+JhHOXHk5U= X-Google-Smtp-Source: AMrXdXtKgRFPXBVj7R54nnGbw4vB8/Vr/7TKyDxmjIzRogqEFN1wo2iKN7Ikw9yCjJDzqEPqZPq7ZA== X-Received: by 2002:a05:6a00:1d23:b0:58d:a91d:e9f8 with SMTP id a35-20020a056a001d2300b0058da91de9f8mr11154285pfx.18.1674169970704; Thu, 19 Jan 2023 15:12:50 -0800 (PST) Received: from localhost ([2a00:79e1:abd:4a00:2703:3c72:eb1a:cffd]) by smtp.gmail.com with ESMTPSA id z189-20020a6233c6000000b0058de3516c3esm4241259pfz.142.2023.01.19.15.12.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Jan 2023 15:12:50 -0800 (PST) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: Rob Clark , Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , CK Hu , Mao Huang , Daniel Kurtz , Bibby Hsieh , YT Shen , linux-mediatek@lists.infradead.org (moderated list:DRM DRIVERS FOR MEDIATEK), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC support), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] drm/mediatek: Drop unbalanced obj unref Date: Thu, 19 Jan 2023 15:12:55 -0800 Message-Id: <20230119231255.2883365-1-robdclark@gmail.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230119_151315_948840_3C801AEC X-CRM114-Status: UNSURE ( 8.91 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Rob Clark In the error path, mtk_drm_gem_object_mmap() is dropping an obj reference that it doesn't own. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Rob Clark --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 9b3d15d3a983..f961c7c7456b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -169,8 +169,6 @@ static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj, ret = dma_mmap_attrs(priv->dma_dev, vma, mtk_gem->cookie, mtk_gem->dma_addr, obj->size, mtk_gem->dma_attrs); - if (ret) - drm_gem_vm_close(vma); return ret; }