diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 2ce75d1564dc..a360227ca3ab 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -203,10 +203,14 @@ static int amradio_set_mute(struct amradio_device *radio, bool mute)
 /* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */
 static int amradio_set_freq(struct amradio_device *radio, int freq)
 {
-	unsigned short freq_send = 0x10 + (freq >> 3) / 25;
+	unsigned short freq_send;
 	u8 buf[3];
 	int retval;
 
+	/* we need to be sure that frequency isn't out of range */
+	freq = clamp_t(unsigned, freq, FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL);
+	freq_send = 0x10 + (freq >> 3) / 25;
+
 	/* frequency is calculated from freq_send and placed in first 2 bytes */
 	buf[0] = (freq_send >> 8) & 0xff;
 	buf[1] = freq_send & 0xff;
@@ -329,8 +333,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 
 	if (f->tuner != 0)
 		return -EINVAL;
-	return amradio_set_freq(radio, clamp_t(unsigned, f->frequency,
-				FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL));
+	return amradio_set_freq(radio, f->frequency);
 }
 
 /* vidioc_g_frequency - get tuner radio frequency */
@@ -389,6 +392,7 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *priv,
 			continue;
 		amradio_send_cmd(radio, AMRADIO_GET_FREQ, 0, NULL, 0, true);
 		if (radio->buffer[1] || radio->buffer[2]) {
+			/* To check: sometimes radio->curfreq is set to out of range value */
 			radio->curfreq = (radio->buffer[1] << 8) | radio->buffer[2];
 			radio->curfreq = (radio->curfreq - 0x10) * 200;
 			amradio_send_cmd(radio, AMRADIO_STOP_SEARCH,