From patchwork Mon Jan 28 09:21:25 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Afzal Mohammed X-Patchwork-Id: 2053921 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id E9AD73FD56 for ; Mon, 28 Jan 2013 09:22:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755891Ab3A1JVi (ORCPT ); Mon, 28 Jan 2013 04:21:38 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:43492 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756012Ab3A1JVf (ORCPT ); Mon, 28 Jan 2013 04:21:35 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0S9LQMe022631; Mon, 28 Jan 2013 03:21:27 -0600 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0S9LPXq013057; Mon, 28 Jan 2013 14:51:25 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Mon, 28 Jan 2013 14:51:25 +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 r0S9LPaF023314; Mon, 28 Jan 2013 14:51:25 +0530 From: Afzal Mohammed To: , , , , CC: Florian Tobias Schandinat , Tomi Valkeinen , Grant Likely , Rob Herring , Rob Landley , Mike Turquette Subject: [PATCH v5 08/12] video: da8xx-fb: invoke platform callback safely Date: Mon, 28 Jan 2013 14:51:25 +0530 Message-ID: <0982f52598fdfc5140af251f998a43146fdf42dc.1359356015.git.afzal@ti.com> 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); }