From patchwork Wed Jan 23 11:48:34 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Afzal Mohammed X-Patchwork-Id: 2024521 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 36FF3E00CF for ; Wed, 23 Jan 2013 11:49:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755417Ab3AWLsr (ORCPT ); Wed, 23 Jan 2013 06:48:47 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:44463 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755847Ab3AWLsp (ORCPT ); Wed, 23 Jan 2013 06:48:45 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0NBmZRY001850; Wed, 23 Jan 2013 05:48:36 -0600 Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0NBmZoP004247; Wed, 23 Jan 2013 17:18:35 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Wed, 23 Jan 2013 17:18:35 +0530 Received: from psplinux063.india.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0NBmZ4v013872; Wed, 23 Jan 2013 17:18:35 +0530 From: Afzal Mohammed To: , , , , CC: Florian Tobias Schandinat , Tomi Valkeinen , Grant Likely , Rob Herring , Rob Landley , Mike Turquette Subject: [PATCH v4 08/12] video: da8xx-fb: invoke platform callback safely Date: Wed, 23 Jan 2013 17:18:34 +0530 Message-ID: X-Mailer: git-send-email 1.7.12 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Ensure that platform data is present before checking whether platform callback is present (the one used to control backlight). So far this was not an issue as driver was purely non-DT triggered, but now DT support has been added. Signed-off-by: Afzal Mohammed --- drivers/video/da8xx-fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 08ee8eb..0beed20 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -1347,7 +1347,7 @@ static int fb_probe(struct platform_device *device) par->dev = &device->dev; par->lcdc_clk = fb_clk; par->lcd_fck_rate = clk_get_rate(fb_clk); - if (fb_pdata->panel_power_ctrl) { + if (fb_pdata && fb_pdata->panel_power_ctrl) { par->panel_power_ctrl = fb_pdata->panel_power_ctrl; par->panel_power_ctrl(1); }