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

[platform/kernel/linux-starfive.git] / drivers / media / radio / radio-tea5764.c

diff --git a/drivers/media/radio/radio-tea5764.c b/drivers/media/radio/radio-tea5764.c
index 3cd76dd..730ffd9 100644 (file)
--- 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;