From: Pawel Osciak <p.osciak@samsung.com>
Date: Tue, 22 Jun 2010 08:38:41 +0000 (-0300)
Subject: V4L/DVB: v4l: mem2mem_testdev: fix g_fmt NULL pointer dereference
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b6ae906b04113cb73c1ffe9c42fbcdcb074d9f07;p=openwrt%2Fstaging%2Fblogic.git

V4L/DVB: v4l: mem2mem_testdev: fix g_fmt NULL pointer dereference

Calling g_fmt before s_fmt resulted in a NULL pointer dereference as no
default formats were being selected on probe.

Reported-by: Németh Márton <nm127@freemail.hu>
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c
index 554eaf140128..10ddeccc70eb 100644
--- a/drivers/media/video/mem2mem_testdev.c
+++ b/drivers/media/video/mem2mem_testdev.c
@@ -988,6 +988,9 @@ static int m2mtest_probe(struct platform_device *pdev)
 		goto err_m2m;
 	}
 
+	q_data[V4L2_M2M_SRC].fmt = &formats[0];
+	q_data[V4L2_M2M_DST].fmt = &formats[0];
+
 	return 0;
 
 err_m2m: