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path: root/drivers/media/radio/radio-typhoon.c
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Diffstat (limited to 'drivers/media/radio/radio-typhoon.c')
-rw-r--r--drivers/media/radio/radio-typhoon.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/radio/radio-typhoon.c b/drivers/media/radio/radio-typhoon.c
index 3a98f1399495..03439282dfce 100644
--- a/drivers/media/radio/radio-typhoon.c
+++ b/drivers/media/radio/radio-typhoon.c
@@ -207,6 +207,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
{
struct typhoon *dev = video_drvdata(file);
+ if (f->tuner != 0)
+ return -EINVAL;
f->type = V4L2_TUNER_RADIO;
f->frequency = dev->curfreq;
return 0;
@@ -217,6 +219,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
{
struct typhoon *dev = video_drvdata(file);
+ if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+ return -EINVAL;
dev->curfreq = f->frequency;
typhoon_setfreq(dev, dev->curfreq);
return 0;