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 BCB8FCCA48A for ; Mon, 13 Jun 2022 12:09:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359130AbiFMMJC (ORCPT ); Mon, 13 Jun 2022 08:09:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358702AbiFMMEg (ORCPT ); Mon, 13 Jun 2022 08:04:36 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B310D50006; Mon, 13 Jun 2022 03:57:44 -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 ams.source.kernel.org (Postfix) with ESMTPS id 29653B80D3A; Mon, 13 Jun 2022 10:57:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83615C34114; Mon, 13 Jun 2022 10:57:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1655117862; bh=inTd+OvQqc7ZGHRQcLzAuhCDyTfspiFvyQADRH4U39g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1t9kM5WQZfjtpuXh5zsSpao9NzAGyqQXbkLkRyAExcuD6IVVnq3At9yIdiiqoQDWe ZwK+ZT03HFjtgrOfJzEucFXoGud4MjTrSBLaXwwpUs83yG5UlYkhDify2NJNE5YQkm N+9iLsQZHLtFjtAOH2nkCMw358Yduiyrd8mC07Hg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Helge Deller , Sasha Levin Subject: [PATCH 4.19 137/287] video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup Date: Mon, 13 Jun 2022 12:09:21 +0200 Message-Id: <20220613094928.032262659@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220613094923.832156175@linuxfoundation.org> References: <20220613094923.832156175@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 b23789a59fa6f00e98a319291819f91fbba0deb8 ] of_parse_phandle() 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: d10715be03bd ("video: ARM CLCD: Add DT support") Signed-off-by: Miaoqian Lin Signed-off-by: Helge Deller Signed-off-by: Sasha Levin --- drivers/video/fbdev/amba-clcd.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index 38c1f324ce15..549f78e77255 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -838,12 +838,15 @@ static int clcdfb_of_vram_setup(struct clcd_fb *fb) return -ENODEV; fb->fb.screen_base = of_iomap(memory, 0); - if (!fb->fb.screen_base) + if (!fb->fb.screen_base) { + of_node_put(memory); return -ENOMEM; + } fb->fb.fix.smem_start = of_translate_address(memory, of_get_address(memory, 0, &size, NULL)); fb->fb.fix.smem_len = size; + of_node_put(memory); return 0; } -- 2.35.1