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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 B7780C11F68 for ; Mon, 12 Jul 2021 09:03:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9641E6113E for ; Mon, 12 Jul 2021 09:03:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1382752AbhGLJCS (ORCPT ); Mon, 12 Jul 2021 05:02:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:55948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352891AbhGLIAa (ORCPT ); Mon, 12 Jul 2021 04:00:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A521161A36; Mon, 12 Jul 2021 07:53:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626076433; bh=/XH8VHetpeGGKDyF4zoCyzPHBVjcwLilhPt4VCDmUkI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rRGmWPcppoKfqJqjUCyFxS0V8SegdjEODLMhNz2oIvbiGmYpca0KQx3q3xFgGfRa7 mcSlu5G+E3jF6PKkO7lm8h+4jSDESAcTjV4/M3fddLZm2IWXvmubUhiiMp1c2EzA/z JKTkIDkEfBxMxCMllucbrSv/jfBZXYuVn/N4Ucxs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Brian Masney , Dan Murphy , Andy Shevchenko , Daniel Thompson , Lee Jones , Sasha Levin Subject: [PATCH 5.13 640/800] backlight: lm3630a_bl: Put fwnode in error case during ->probe() Date: Mon, 12 Jul 2021 08:11:03 +0200 Message-Id: <20210712061035.192005277@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060912.995381202@linuxfoundation.org> References: <20210712060912.995381202@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: Andy Shevchenko [ Upstream commit 6d1c32dbedd7d7e7372aa38033ec8782c39f6379 ] device_for_each_child_node() bumps a reference counting of a returned variable. We have to balance it whenever we return to the caller. Cc: Brian Masney Cc: Dan Murphy Fixes: 8fbce8efe15cd ("backlight: lm3630a: Add firmware node support") Signed-off-by: Andy Shevchenko Reviewed-by: Brian Masney Reviewed-by: Daniel Thompson Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- drivers/video/backlight/lm3630a_bl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c index e88a2b0e5904..662029d6a3dc 100644 --- a/drivers/video/backlight/lm3630a_bl.c +++ b/drivers/video/backlight/lm3630a_bl.c @@ -482,8 +482,10 @@ static int lm3630a_parse_node(struct lm3630a_chip *pchip, device_for_each_child_node(pchip->dev, node) { ret = lm3630a_parse_bank(pdata, node, &seen_led_sources); - if (ret) + if (ret) { + fwnode_handle_put(node); return ret; + } } return ret; -- 2.30.2