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ALSA: usb-audio: use bitmap_weight

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Use bitmap_weight to count the total number of bits set in bitmap.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Joe Perches 2012-11-16 23:35:16 -08:00 committed by Takashi Iwai
parent 701ef3205e
commit 190006f9d6
1 changed files with 1 additions and 6 deletions
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7
sound/usb/endpoint.c
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@ -485,15 +485,10 @@ __exit_unlock:
static int wait_clear_urbs(struct snd_usb_endpoint *ep)
{
unsigned long end_time = jiffies + msecs_to_jiffies(1000);
unsigned int i;
int alive;
do {
alive = 0;
for (i = 0; i < ep->nurbs; i++)
if (test_bit(i, &ep->active_mask))
alive++;
alive = bitmap_weight(&ep->active_mask, ep->nurbs);
if (!alive)
break;