diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c
index ce940b1b787f..f0a67e93d7fd 100644
--- a/drivers/media/radio/radio-aimslab.c
+++ b/drivers/media/radio/radio-aimslab.c
@@ -63,7 +63,7 @@ struct rt_device
 static void sleep_delay(long n)
 {
 	/* Sleep nicely for 'n' uS */
-	int d=n/(1000000/HZ);
+	int d=n/msecs_to_jiffies(1000);
 	if(!d)
 		udelay(n);
 	else
diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
index 8cf2e9df5c8a..34e317ced5a3 100644
--- a/drivers/media/radio/radio-cadet.c
+++ b/drivers/media/radio/radio-cadet.c
@@ -329,7 +329,7 @@ cadet_handler(unsigned long data)
 	init_timer(&readtimer);
 	readtimer.function=cadet_handler;
 	readtimer.data=(unsigned long)0;
-	readtimer.expires=jiffies+(HZ/20);
+	readtimer.expires=jiffies+msecs_to_jiffies(50);
 	add_timer(&readtimer);
 }
 
@@ -349,7 +349,7 @@ cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
 		init_timer(&readtimer);
 		readtimer.function=cadet_handler;
 		readtimer.data=(unsigned long)0;
-		readtimer.expires=jiffies+(HZ/20);
+		readtimer.expires=jiffies+msecs_to_jiffies(50);
 		add_timer(&readtimer);
 	}
 	if(rdsin==rdsout) {