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 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 71FEDC982C9 for ; Wed, 16 Sep 2026 17:51:00 +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=KphINyfIHZW/c+EhE3ByOVT3aIaZM4jmdM+slxMdO/Q=; b=l+pXX7/h9UMg6R QoTnbxGuw+fLc91OhON24JApmM28DYqSpf43it2fAsYkBsCdmTOx3ExKw4WUqGcsUGHATG7cNjygH RcC9r+6Fy5fz5QQWzEmvaCcd+kz6OQWz8kYA2n+pX9e0f9RW3AQLtMwM/12IA5RLzG3ouIyjUeMzd pr1XSRJEZEW6wf6MLzfAOusD7xFoBWtJJcWgmGlsDYHEe1oJYIEcWcG3aH1JwRadKhBcNUgBReWVD 7e2xCoMqdr/43WDa6EJk6eqdxAYMZhRjbYcEA6i3p5nFrCGtrjEPU+TtPy3MPrMwN8E3UNYXGZugB hzg/hZr8WAcA40zfFq6Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6tma-00000009uEA-0iba; Wed, 16 Sep 2026 17:50:56 +0000 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6tmX-00000009uD7-1O1b; Wed, 16 Sep 2026 17:50:55 +0000 Received: from dfae2b116770.home.arpa (unknown [36.110.52.2]) by APP-05 (Coremail) with SMTP id zQCowACnETzz1qpqsexuCA--.46259S2; Thu, 17 Sep 2026 01:50:43 +0800 (CST) From: Wentao Liang To: airlied@gmail.com Cc: dri-devel@lists.freedesktop.org, jagan@amarulasolutions.com, jbrunet@baylibre.com, khilman@baylibre.com, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, martin.blumenstingl@googlemail.com, mripard@kernel.org, nbelin@baylibre.com, neil.armstrong@linaro.org, simona@ffwll.ch, tzimmermann@suse.de, Wentao Liang , stable@vger.kernel.org Subject: [PATCH] drm/meson: Fix remote device node leak in meson_encoder_dsi_probe() Date: Wed, 16 Sep 2026 17:50:15 +0000 Message-Id: <20260916175015.2089358-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CM-TRANSID: zQCowACnETzz1qpqsexuCA--.46259S2 X-Coremail-Antispam: 1UD129KBjvdXoW7GrWkXw47Jr4kAr1DZr17GFg_yoWkWFb_X3 WrAFyDAr1UtrZrtr47CrWxCFZ2y3W5uF4093ZrJayfCFyYyr17Xay7uF1kXF17ur9xCa1D J34rXr1fuF1xKjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb-xFF20E14v26ryj6rWUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v26F 4UJVW0owAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv 7VC0I7IYx2IY67AKxVWUtVWrXwAv7VC2z280aVAFwI0_Cr0_Gr1UMcvjeVCFs4IE7xkEbV WUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7Cj xVA2Y2ka0xkIwI1lc7CjxVAaw2AFwI0_GFv_Wryl42xK82IYc2Ij64vIr41l4I8I3I0E4I kC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWU WwC2zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_JF I_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1lIxAIcVCF04k26cxKx2IYs7xG 6r1j6r1xMIIF0xvEx4A2jsIE14v26F4j6r4UJwCI42IY6I8E87Iv6xkF7I0E14v26F4UJV W0obIYCTnIWIevJa73UjIFyTuYvjTRRD7VDUUUU X-Originating-IP: [36.110.52.2] X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiDAQMA2qqpO9uFwAAs1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260916_105053_746240_8B035D1E X-CRM114-Status: UNSURE ( 6.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org The device node returned by of_graph_get_remote_node() is never released. of_drm_find_and_get_bridge() only uses it as a lookup key and takes its own reference on the bridge, so drop the node reference once the lookup is done, as meson_encoder_cvbs_probe() already does. Fixes: 42dcf15f901c ("drm/meson: add DSI encoder") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang --- drivers/gpu/drm/meson/meson_encoder_dsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/meson/meson_encoder_dsi.c b/drivers/gpu/drm/meson/meson_encoder_dsi.c index 5f2eeeaf93b8..4e1ebe617e49 100644 --- a/drivers/gpu/drm/meson/meson_encoder_dsi.c +++ b/drivers/gpu/drm/meson/meson_encoder_dsi.c @@ -120,6 +120,7 @@ int meson_encoder_dsi_probe(struct meson_drm *priv) } meson_encoder_dsi->bridge.next_bridge = of_drm_find_and_get_bridge(remote); + of_node_put(remote); if (!meson_encoder_dsi->bridge.next_bridge) return dev_err_probe(priv->dev, -EPROBE_DEFER, "Failed to find DSI transceiver bridge\n"); -- 2.34.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic