From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 14 Nov 2011 07:28:59 +0000 (-0300)
Subject: [media] omap_vout: fix crash if no driver for a display
X-Git-Tag: next-20111212~62^2~2^2~13
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=71c7a97289571ef5246b7f20d60b44961144c82f;p=karo-tx-linux.git

[media] omap_vout: fix crash if no driver for a display

omap_vout crashes on start if a corresponding driver is not loaded for a
display device.

This patch changes omap_vout init sequence to skip devices without a
driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 9c5c19f142de..2d2a136e465e 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -2169,6 +2169,14 @@ static int __init omap_vout_probe(struct platform_device *pdev)
 	vid_dev->num_displays = 0;
 	for_each_dss_dev(dssdev) {
 		omap_dss_get_device(dssdev);
+
+		if (!dssdev->driver) {
+			dev_warn(&pdev->dev, "no driver for display: %s\n",
+					dssdev->name);
+			omap_dss_put_device(dssdev);
+			continue;
+		}
+
 		vid_dev->displays[vid_dev->num_displays++] = dssdev;
 	}