From a3a9e287daa1f299e318161b790b1c5902b1d869 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 27 Nov 2009 04:33:25 -0300 Subject: V4L/DVB (13547): radio: add trivial checks on the tuner and type args. Many radio drivers did not check the tuner and type field correctly for g/s_frequency. These checks have now been added. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-maestro.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/media/radio/radio-maestro.c') diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c index 64d737c35acf..f8213b7c8ddc 100644 --- a/drivers/media/radio/radio-maestro.c +++ b/drivers/media/radio/radio-maestro.c @@ -200,6 +200,8 @@ static int vidioc_s_frequency(struct file *file, void *priv, { struct maestro *dev = video_drvdata(file); + if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) + return -EINVAL; if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) return -EINVAL; mutex_lock(&dev->lock); @@ -213,6 +215,8 @@ static int vidioc_g_frequency(struct file *file, void *priv, { struct maestro *dev = video_drvdata(file); + if (f->tuner != 0) + return -EINVAL; f->type = V4L2_TUNER_RADIO; mutex_lock(&dev->lock); f->frequency = BITS2FREQ(radio_bits_get(dev)); -- cgit v1.2.2