V4L/DVB (13547): radio: add trivial checks on the tuner and type args.

[pandora-kernel.git] / drivers / media / radio / radio-gemtek-pci.c

diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c
index c6cf116..000f4d3 100644 (file)
--- a/drivers/media/radio/radio-gemtek-pci.c
+++ b/drivers/media/radio/radio-gemtek-pci.c
@@ -240,6 +240,8 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 {
        struct gemtek_pci *card = video_drvdata(file);
 
+       if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+               return -EINVAL;
        if (f->frequency < GEMTEK_PCI_RANGE_LOW ||
            f->frequency > GEMTEK_PCI_RANGE_HIGH)
                return -EINVAL;
@@ -253,6 +255,8 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 {
        struct gemtek_pci *card = video_drvdata(file);
 
+       if (f->tuner != 0)
+               return -EINVAL;
        f->type = V4L2_TUNER_RADIO;
        f->frequency = card->current_frequency;
        return 0;