From patchwork Wed Jun 1 04:25:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaoqian Lin X-Patchwork-Id: 83699 X-Patchwork-Delegate: laurent.pinchart@ideasonboard.com Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1nwFvE-001aew-Lv; Wed, 01 Jun 2022 04:25:28 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345510AbiFAEZ0 (ORCPT + 1 other); Wed, 1 Jun 2022 00:25:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240934AbiFAEZZ (ORCPT ); Wed, 1 Jun 2022 00:25:25 -0400 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D3169E9E1; Tue, 31 May 2022 21:25:24 -0700 (PDT) Received: by mail-pj1-x102b.google.com with SMTP id a10so850732pju.3; Tue, 31 May 2022 21:25:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=qV/kQWWE5TCXDtwtIihkerreiew7iWC6lBTWJeucJIg=; b=ReFoyD6+1Lqkr/R2pf+8AKWuf/SU8Gfa83eXY5S/LG50yi/hKWMyX/3OPwn6aJ1F59 ib9E9yb2Y+S9tgbMqi2DzZfsCNhEUZGbxD4oOkub/0tFfsfKT9wVkM86/SQIFsLo3BVz e5cJitqsmzcKoJtU0zDAoJXxB/Z2c3YRZcfczyZeN6rgZiFxc0z9YfjrHcMfrDOIzBxV u+rLPDPpIMOH6r2OBg5TTdGimLpRzbSuCskm47LvrMHkT2LLciV2MPVfHVIrOC8nH7HR MEYS9/U+HJ6ikAALq2hyIwzab4ExehXGsmHSgM3JQxIvPbHiKj0rK4M0VnW+6Qi4/aq1 vRWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=qV/kQWWE5TCXDtwtIihkerreiew7iWC6lBTWJeucJIg=; b=1gJ7emSOgzsu5MHw1jXlb2eYKy2oTyMZIGlkaEgkRGi7vj2PYQKErkU8G18zIYPSAz 87YYHPomCIi4kS+blzK/S5OtphQm+jxkh+8Z411Z9GSo7kcP5SUudiRrjQCQ8PjdlqpB 5d9o2Kf+UBZZkSqsKEwr91lSSZrHQFdvvHtJxple+rpOn0n1/oQKAff7RoVEG+oTY6fK mF+lZBv+Dfu3TeiHU04LFRbCFfkT0bYzgX+W1gPgbl5th7gqQEUerW26Z+KMD0rysz7x 8ovo/VraERsobG77GBndy5dw3u0A5javWcKJ2ckgKYJj2E3sxNxD7nylU5T42i+iiQmH OsFw== X-Gm-Message-State: AOAM531ErYb6T1iAFg/QI24HQu1Qq2Ex+TsO/FFo7ITmeMw+Vdc/nYyQ Q52IkR8g0mtDOyQKJYwdzu8= X-Google-Smtp-Source: ABdhPJzhh0v5mf83CiChYoplV/aivC7HiUkv4hOQhbwi4NqjR/XvCvK6+eyWrEazVoETOiYVO01X8A== X-Received: by 2002:a17:902:e54e:b0:162:4b8b:f2be with SMTP id n14-20020a170902e54e00b001624b8bf2bemr38630727plf.5.1654057524096; Tue, 31 May 2022 21:25:24 -0700 (PDT) Received: from localhost.localdomain ([202.120.234.246]) by smtp.googlemail.com with ESMTPSA id fz21-20020a17090b025500b001df51e34036sm337111pjb.0.2022.05.31.21.25.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 May 2022 21:25:23 -0700 (PDT) From: Miaoqian Lin To: Hyun Kwon , Laurent Pinchart , Mauro Carvalho Chehab , Michal Simek , Radhey Shyam Pandey , Hans Verkuil , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: linmq006@gmail.com Subject: [PATCH] v4l: xilinx-vipp: Fix refcount leak in xvip_graph_dma_init Date: Wed, 1 Jun 2022 08:25:14 +0400 Message-Id: <20220601042514.61780-1-linmq006@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,FREEMAIL_FORGED_FROMDOMAIN=0.001,FREEMAIL_FROM=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: df3305156f98 ("[media] v4l: xilinx: Add Xilinx Video IP core") Signed-off-by: Miaoqian Lin Reviewed-by: Laurent Pinchart --- drivers/media/platform/xilinx/xilinx-vipp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c index f34f8b077e03..415579b63737 100644 --- a/drivers/media/platform/xilinx/xilinx-vipp.c +++ b/drivers/media/platform/xilinx/xilinx-vipp.c @@ -483,10 +483,12 @@ static int xvip_graph_dma_init(struct xvip_composite_device *xdev) ret = xvip_graph_dma_init_one(xdev, port); if (ret < 0) { of_node_put(port); + of_node_put(ports); return ret; } } + of_node_put(ports); return 0; }