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-tea5764.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/media/radio/radio-tea5764.c') diff --git a/drivers/media/radio/radio-tea5764.c b/drivers/media/radio/radio-tea5764.c index 3cd76dddb6aa..730ffd9cdd3e 100644 --- a/drivers/media/radio/radio-tea5764.c +++ b/drivers/media/radio/radio-tea5764.c @@ -349,7 +349,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, { struct tea5764_device *radio = video_drvdata(file); - if (f->tuner != 0) + if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) return -EINVAL; if (f->frequency == 0) { /* We special case this as a power down control. */ @@ -370,6 +370,8 @@ static int vidioc_g_frequency(struct file *file, void *priv, struct tea5764_device *radio = video_drvdata(file); struct tea5764_regs *r = &radio->regs; + if (f->tuner != 0) + return -EINVAL; tea5764_i2c_read(radio); memset(f, 0, sizeof(f)); f->type = V4L2_TUNER_RADIO; -- cgit v1.2.2