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authorTorsten Schenk <torsten.schenk@zoho.com>2011-04-04 11:47:50 +0200
committerTakashi Iwai <tiwai@suse.de>2011-04-04 12:24:53 +0200
commite220fa3bf503d63039fa8e0398a1c252d24663f9 (patch)
tree53b51f12e43aed6eb0b603edb43cc2a90038e789 /sound/usb/6fire
parent78caf66cb568f2b0c63bf8f87cff2fe1583dd9d0 (diff)
downloadlinux-e220fa3bf503d63039fa8e0398a1c252d24663f9.tar.gz
ALSA: 6fire - Fix pcm rate assignment
Completion of signedness bug for pcm_runtime.rate: variable will never
get assigned a negative value now.

Signed-off-by: Torsten Schenk <torsten.schenk@zoho.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/6fire')
-rw-r--r--sound/usb/6fire/pcm.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index ba62c7468ba8..2110cbf35474 100644
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -456,7 +456,7 @@ static int usb6fire_pcm_close(struct snd_pcm_substream *alsa_sub)
 		/* all substreams closed? if so, stop streaming */
 		if (!rt->playback.instance && !rt->capture.instance) {
 			usb6fire_pcm_stream_stop(rt);
-			rt->rate = -1;
+			rt->rate = ARRAY_SIZE(rates);
 		}
 	}
 	mutex_unlock(&rt->stream_mutex);
@@ -480,7 +480,6 @@ static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub)
 	struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
 	struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
 	struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime;
-	int i;
 	int ret;
 
 	if (rt->panic)
@@ -493,12 +492,10 @@ static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub)
 	sub->period_off = 0;
 
 	if (rt->stream_state == STREAM_DISABLED) {
-		for (i = 0; i < ARRAY_SIZE(rates); i++)
-			if (alsa_rt->rate == rates[i]) {
-				rt->rate = i;
+		for (rt->rate = 0; rt->rate < ARRAY_SIZE(rates); rt->rate++)
+			if (alsa_rt->rate == rates[rt->rate])
 				break;
-			}
-		if (i == ARRAY_SIZE(rates)) {
+		if (rt->rate == ARRAY_SIZE(rates)) {
 			mutex_unlock(&rt->stream_mutex);
 			snd_printk("invalid rate %d in prepare.\n",
 					alsa_rt->rate);
@@ -613,7 +610,7 @@ int __devinit usb6fire_pcm_init(struct sfire_chip *chip)
 
 	rt->chip = chip;
 	rt->stream_state = STREAM_DISABLED;
-	rt->rate = -1;
+	rt->rate = ARRAY_SIZE(rates);
 	init_waitqueue_head(&rt->stream_wait_queue);
 	mutex_init(&rt->stream_mutex);