From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D136E23752 for ; Wed, 20 Sep 2023 12:05:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5755AC433C9; Wed, 20 Sep 2023 12:05:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1695211544; bh=IzG/+OB+1GIftoKIl+QHFixjiO95sTMj1J5J8mC7g1E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wMI++lPZr+2bmen5ZmWLk0gqOFHBAF0z+l5xZQu+yD6lW5646JXtFjeSKZxUV4DH4 GosdJ47fexHtL74jb+F4GSAgcMiPa2/ySL6eK6Hn3T/FdywdyZvBWwBzE/Wm+ppZr+ E6ejfwCSdsHm9yR8PjhgxA+6qORItwipvAMWwCsQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Zimmermann , Laurent Pinchart , Lee Jones , Daniel Thompson , Jingoo Han , dri-devel@lists.freedesktop.org, Javier Martinez Canillas , Sam Ravnborg Subject: [PATCH 4.14 106/186] backlight/bd6107: Compare against struct fb_info.device Date: Wed, 20 Sep 2023 13:30:09 +0200 Message-ID: <20230920112840.838636787@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230920112836.799946261@linuxfoundation.org> References: <20230920112836.799946261@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Zimmermann commit 992bdddaabfba19bdc77c1c7a4977b2aa41ec891 upstream. Struct bd6107_platform_data refers to a platform device within the Linux device hierarchy. The test in bd6107_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: 67b43e590415 ("backlight: Add ROHM BD6107 backlight driver") Signed-off-by: Thomas Zimmermann Cc: Laurent Pinchart Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han 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/20230613110953.24176-2-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman --- drivers/video/backlight/bd6107.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/video/backlight/bd6107.c +++ b/drivers/video/backlight/bd6107.c @@ -110,7 +110,7 @@ static int bd6107_backlight_check_fb(str { struct bd6107 *bd = bl_get_data(backlight); - return bd->pdata->fbdev == NULL || bd->pdata->fbdev == info->dev; + return bd->pdata->fbdev == NULL || bd->pdata->fbdev == info->device; } static const struct backlight_ops bd6107_backlight_ops = {