[PATCH alsa-lib 1/3] pcm: rate: Fix compile warning wrt bit ops and comparison

[Takashi Iwai]

We've got a gcc warning:
  pcm_rate.c: In function ‘snd_pcm_rate_drain’:
  pcm_rate.c:1090:19: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]
     if (pcm->mode & SND_PCM_NONBLOCK != 0) {
                   ^

Drop the zero comparison for fixing the warning and for simplicity.

Fixes: 29041c522071 ("fix infinite draining of the rate plugin in SND_PCM_NONBLOCK mode")
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 src/pcm/pcm_rate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 4f99a95b325f..980fa44e4023 100644
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -1087,7 +1087,7 @@ static int snd_pcm_rate_drain(snd_pcm_t *pcm)
 				if (rate->last_commit_ptr >= pcm->boundary)
 					rate->last_commit_ptr = 0;
 			} else if (commit_err == 0) {
-				if (pcm->mode & SND_PCM_NONBLOCK != 0) {
+				if (pcm->mode & SND_PCM_NONBLOCK) {
 					commit_err = -EAGAIN;
 					break;
 				}
-- 
2.16.4