From 231ffc9c07021afcfb1afa229aa4935730e5163b Mon Sep 17 00:00:00 2001
From: Devin Heitmueller <dheitmueller@linuxtv.org>
Date: Tue, 16 Dec 2008 23:09:35 -0300
Subject: V4L/DVB (9920): em28xx: fix NULL pointer dereference in call to
VIDIOC_INT_RESET command
Fix a NULL pointer dereference that would occur if the video decoder tied to
the em28xx supports the VIDIOC_INT_RESET call (for example: the cx25840 driver)
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
drivers/media/video/em28xx/em28xx-video.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 610f535a257c..4ea1f1e04897 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -549,10 +549,11 @@ static int em28xx_config(struct em28xx *dev)
static void em28xx_config_i2c(struct em28xx *dev)
{
struct v4l2_routing route;
+ int zero = 0;
route.input = INPUT(dev->ctl_input)->vmux;
route.output = 0;
- em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, NULL);
+ em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, &zero);
em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route);
em28xx_i2c_call_clients(dev, VIDIOC_STREAMON, NULL);
}
--
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