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 X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C63B0C282C8 for ; Mon, 28 Jan 2019 16:44:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 816C32084C for ; Mon, 28 Jan 2019 16:44:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548693886; bh=VJHfTeWE69BzaokekwoAcSIM5OmZnXbFokFQuWGBqaQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rOre3seIFy7pZRzPcqc2mzZrU2sLohcLaWw1TjIcx+eBGuSIoM6mOUFcRtP2KnHDX U+8liOVvvn7dtr/SlvO4GYIp4aMz0dxHjcQt3z+HVncg8KkBr2CN3bkq0KxC/YVKrU KsmldhVcCvU1Aoc/ZNJVZqh0cDi1CacKlrKMvI0g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390600AbfA1Qoo (ORCPT ); Mon, 28 Jan 2019 11:44:44 -0500 Received: from mail.kernel.org ([198.145.29.99]:59102 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388611AbfA1QW6 (ORCPT ); Mon, 28 Jan 2019 11:22:58 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 19DA520663; Mon, 28 Jan 2019 16:22:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548692578; bh=VJHfTeWE69BzaokekwoAcSIM5OmZnXbFokFQuWGBqaQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JsxklBYDTBQxwyF6gxTGY2UobuPPICT9xiWKUNtLnujQR5R7QLs7T66PG1wMVuudT aFw0/z2tRXmy3j2KWfoqBndrye/VToOCe7tMoIz07TUU2e8tKPGHn+aKv7yXNr04ak OrB/FacD/IJsAHy94vkSfnyeyJiyXQlyxFfdR9Vo= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Alexey Khoroshilov , Alexander Shiyan , Bartlomiej Zolnierkiewicz , Sasha Levin , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 075/107] video: clps711x-fb: release disp device node in probe() Date: Mon, 28 Jan 2019 11:19:15 -0500 Message-Id: <20190128161947.57405-75-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190128161947.57405-1-sashal@kernel.org> References: <20190128161947.57405-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexey Khoroshilov [ Upstream commit fdac751355cd76e049f628afe6acb8ff4b1399f7 ] clps711x_fb_probe() increments refcnt of disp device node by of_parse_phandle() and leaves it undecremented on both successful and error paths. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Cc: Alexander Shiyan Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Sasha Levin --- drivers/video/fbdev/clps711x-fb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c index ff561073ee4e..42f909618f04 100644 --- a/drivers/video/fbdev/clps711x-fb.c +++ b/drivers/video/fbdev/clps711x-fb.c @@ -287,14 +287,17 @@ static int clps711x_fb_probe(struct platform_device *pdev) } ret = of_get_fb_videomode(disp, &cfb->mode, OF_USE_NATIVE_MODE); - if (ret) + if (ret) { + of_node_put(disp); goto out_fb_release; + } of_property_read_u32(disp, "ac-prescale", &cfb->ac_prescale); cfb->cmap_invert = of_property_read_bool(disp, "cmap-invert"); ret = of_property_read_u32(disp, "bits-per-pixel", &info->var.bits_per_pixel); + of_node_put(disp); if (ret) goto out_fb_release; -- 2.19.1