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 529EFCE79D0 for ; Wed, 20 Sep 2023 12:16:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235480AbjITMQe (ORCPT ); Wed, 20 Sep 2023 08:16:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235581AbjITMQ0 (ORCPT ); Wed, 20 Sep 2023 08:16:26 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4063ACE7; Wed, 20 Sep 2023 05:16:09 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 436A0C433C9; Wed, 20 Sep 2023 12:16:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1695212168; bh=b4MSMyJh/b3Ho3pTP5ItMLMHcbfmY9YpwuBQ4lt0QMA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LIHFAzQJ9JMTmptbPmRNOH+tdd/r4hVQu6MeZf7rIOwFeqwcqvHP2qZ2z6KbFyu1o Ucwz3Meux8a+GKfx3USZ+njGa93bXGos6LDID7CShId5Q2ZhD7jYjHYtW82DRWFClO XCPc0ewRgS9I+CwXFlkPKaUIxTddPfzJEG2So6cw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Zimmermann , Laurent Pinchart , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , Lee Jones , Daniel Thompson , Jingoo Han , linux-sh@vger.kernel.org, dri-devel@lists.freedesktop.org, Javier Martinez Canillas , Sam Ravnborg Subject: [PATCH 4.19 177/273] backlight/lv5207lp: Compare against struct fb_info.device Date: Wed, 20 Sep 2023 13:30:17 +0200 Message-ID: <20230920112851.986257747@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230920112846.440597133@linuxfoundation.org> References: <20230920112846.440597133@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Zimmermann commit 1ca8819320fd84e7d95b04e7668efc5f9fe9fa5c upstream. Struct lv5207lp_platform_data refers to a platform device within the Linux device hierarchy. The test in lv5207lp_backlight_check_fb() compares it against the fbdev device in struct fb_info.dev, which is different. Fix the test by comparing to struct fb_info.device. Fixes a bug in the backlight driver and prepares fbdev for making struct fb_info.dev optional. v2: * move renames into separate patch (Javier, Sam, Michael) Fixes: 82e5c40d88f9 ("backlight: Add Sanyo LV5207LP backlight driver") Signed-off-by: Thomas Zimmermann Cc: Laurent Pinchart Cc: Yoshinori Sato Cc: Rich Felker Cc: John Paul Adrian Glaubitz Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han Cc: linux-sh@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: # v3.12+ Reviewed-by: Javier Martinez Canillas Reviewed-by: Sam Ravnborg Reviewed-by: Daniel Thompson Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-6-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman --- drivers/video/backlight/lv5207lp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/video/backlight/lv5207lp.c +++ b/drivers/video/backlight/lv5207lp.c @@ -75,7 +75,7 @@ static int lv5207lp_backlight_check_fb(s { struct lv5207lp *lv = bl_get_data(backlight); - return lv->pdata->fbdev == NULL || lv->pdata->fbdev == info->dev; + return lv->pdata->fbdev == NULL || lv->pdata->fbdev == info->device; } static const struct backlight_ops lv5207lp_backlight_ops = {