diff options
| author | vignesh babu <vignesh.babu@wipro.com> | 2007-02-22 13:23:01 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2007-05-11 16:55:42 +0200 |
| commit | 62e96a1caab86e0d3688d59fcb6f682cc52d4917 (patch) | |
| tree | 26ffc1fab5bf2a3b5660ba43fdf06d1ff4bcfccd | |
| parent | ac519028a4e7b919eaff65a1535824259df326c6 (diff) | |
[ALSA] is_power_of_2 in rtctimer.c
Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2
Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| -rw-r--r-- | sound/core/rtctimer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/core/rtctimer.c b/sound/core/rtctimer.c index 9f7b32e1ccde..7cd5e8f5d4ce 100644 --- a/sound/core/rtctimer.c +++ b/sound/core/rtctimer.c @@ -24,6 +24,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/moduleparam.h> +#include <linux/log2.h> #include <sound/core.h> #include <sound/timer.h> @@ -129,7 +130,7 @@ static int __init rtctimer_init(void) struct snd_timer *timer; if (rtctimer_freq < 2 || rtctimer_freq > 8192 || - (rtctimer_freq & (rtctimer_freq - 1)) != 0) { + !is_power_of_2(rtctimer_freq)) { snd_printk(KERN_ERR "rtctimer: invalid frequency %d\n", rtctimer_freq); return -EINVAL; |