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-rw-r--r--sound/core/rtctimer.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/sound/core/rtctimer.c b/sound/core/rtctimer.c
index 85627dbe6a57..8762ff8938c2 100644
--- a/sound/core/rtctimer.c
+++ b/sound/core/rtctimer.c
@@ -119,16 +119,11 @@ static void rtctimer_interrupt(void *private_data)
*/
static int __init rtctimer_init(void)
{
- int order, err;
+ int err;
snd_timer_t *timer;
- if (rtctimer_freq < 2 || rtctimer_freq > 8192) {
- snd_printk(KERN_ERR "rtctimer: invalid frequency %d\n", rtctimer_freq);
- return -EINVAL;
- }
- for (order = 1; rtctimer_freq > order; order <<= 1)
- ;
- if (rtctimer_freq != order) {
+ if (rtctimer_freq < 2 || rtctimer_freq > 8192 ||
+ (rtctimer_freq & (rtctimer_freq - 1)) != 0) {
snd_printk(KERN_ERR "rtctimer: invalid frequency %d\n", rtctimer_freq);
return -EINVAL;
}