linux-kernel - [PATCH 17/20] omapfb: suspend/resume only if FB device is already initialized

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Date:	Wed, 24 Jun 2009 14:33:42 +0300
From:	Imre Deak <imre.deak@...ia.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Krzysztof Helt <krzysztof.h1@...zta.fm>,
	Antonino Daplas <adaplas@...il.com>,
	Tony Lindgren <tony@...mide.com>,
	Tomi Valkeinen <Tomi.Valkeinen@...ia.com>
Subject: [PATCH 17/20] omapfb: suspend/resume only if FB device is already initialized

From: Jouni Högander <jouni.hogander@...ia.com>

Check wether fbdev is NULL in suspend / resume functions. Fbdev is
NULL, if there is no lcd or it is not enabled in configuration.

Signed-off-by: Jouni Högander <jouni.hogander@...ia.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Imre Deak <imre.deak@...ia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@...pl>
---
 drivers/video/omap/omapfb_main.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index 5b04b9c..098177b 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -1842,8 +1842,8 @@ static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
 	struct omapfb_device *fbdev = platform_get_drvdata(pdev);
 
-	omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
-
+	if (fbdev != NULL)
+		omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
 	return 0;
 }
 
@@ -1852,7 +1852,8 @@ static int omapfb_resume(struct platform_device *pdev)
 {
 	struct omapfb_device *fbdev = platform_get_drvdata(pdev);
 
-	omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
+	if (fbdev != NULL)
+		omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
 	return 0;
 }
 
-- 
1.6.3.2

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