提交 94dee760 编写于 作者: H Hans Verkuil 提交者: Mauro Carvalho Chehab

V4L/DVB (7758): ivtv: fix oops when itv->speed == 0 and VIDEO_CMD_PLAY is called

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
上级 22f23fcc
......@@ -243,20 +243,31 @@ static int ivtv_validate_speed(int cur_speed, int new_speed)
int fact = new_speed < 0 ? -1 : 1;
int s;
if (new_speed < 0) new_speed = -new_speed;
if (cur_speed < 0) cur_speed = -cur_speed;
if (cur_speed == 0)
cur_speed = 1000;
if (new_speed < 0)
new_speed = -new_speed;
if (cur_speed < 0)
cur_speed = -cur_speed;
if (cur_speed <= new_speed) {
if (new_speed > 1500) return fact * 2000;
if (new_speed > 1000) return fact * 1500;
if (new_speed > 1500)
return fact * 2000;
if (new_speed > 1000)
return fact * 1500;
}
else {
if (new_speed >= 2000) return fact * 2000;
if (new_speed >= 1500) return fact * 1500;
if (new_speed >= 1000) return fact * 1000;
}
if (new_speed == 0) return 1000;
if (new_speed == 1 || new_speed == 1000) return fact * new_speed;
if (new_speed >= 2000)
return fact * 2000;
if (new_speed >= 1500)
return fact * 1500;
if (new_speed >= 1000)
return fact * 1000;
}
if (new_speed == 0)
return 1000;
if (new_speed == 1 || new_speed == 1000)
return fact * new_speed;
s = new_speed;
new_speed = 1000 / new_speed;
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册