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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B1B3CCA488 for ; Tue, 7 Jun 2022 21:17:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380157AbiFGVPf (ORCPT ); Tue, 7 Jun 2022 17:15:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376274AbiFGUQh (ORCPT ); Tue, 7 Jun 2022 16:16:37 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9AB8E1CC617; Tue, 7 Jun 2022 11:28:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8F19F60DDA; Tue, 7 Jun 2022 18:28:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BFCFC385A2; Tue, 7 Jun 2022 18:28:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654626529; bh=amM3zB8TSbCpz0UXWMHRJWN0tWfs7pexmWYwTkWIwvM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a2k8+pnjcFue56BE5DQVHLLYA4E+xjlaOL2nSbh1TBV3z6Uq2yQv+4N85H5ycpngR D0wWuBHe69pFROk26v75z6eHucW51PLPHEo4uGhy9a2f3VkWav7AtmdN8t5PCEY8SN 4YbwiDrC8vupyFgOFluAaOzs7CY0cjonKId2ZSVw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Akhil P Oommen , Rob Clark , Sasha Levin Subject: [PATCH 5.17 411/772] drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init Date: Tue, 7 Jun 2022 19:00:03 +0200 Message-Id: <20220607165001.118289994@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607164948.980838585@linuxfoundation.org> References: <20220607164948.980838585@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: Miaoqian Lin [ Upstream commit c56de483093d7ad0782327f95dda7da97bc4c315 ] of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. a6xx_gmu_init() passes the node to of_find_device_by_node() and of_dma_configure(), of_find_device_by_node() will takes its reference, of_dma_configure() doesn't need the node after usage. Add missing of_node_put() to avoid refcount leak. Fixes: 4b565ca5a2cb ("drm/msm: Add A6XX device support") Signed-off-by: Miaoqian Lin Reviewed-by: Akhil P Oommen Link: https://lore.kernel.org/r/20220512121955.56937-1-linmq006@gmail.com Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index 19622fb1fa35..147e716108ba 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -1875,6 +1875,7 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) BUG_ON(!node); ret = a6xx_gmu_init(a6xx_gpu, node); + of_node_put(node); if (ret) { a6xx_destroy(&(a6xx_gpu->base.base)); return ERR_PTR(ret); -- 2.35.1