ALSA: 6fire - Fix signedness bug

Fixed remaining issues of the signedness bug discovered by Dan Carpenter.
A check was remaining that tests if unsigned rt->rate is >= 0.
Changed that so that rt->rate now consistently uses ARRAY_SIZE(rates)
as invalid rate value and not -1.

Signed-off-by: Torsten Schenk <torsten.schenk@zoho.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index b137b25..d144cdb 100644 (file)
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -395,12 +395,12 @@ static int usb6fire_pcm_open(struct snd_pcm_substream *alsa_sub)
        alsa_rt->hw = pcm_hw;
 
        if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-               if (rt->rate >= 0)
+               if (rt->rate < ARRAY_SIZE(rates))
                        alsa_rt->hw.rates = rates_alsaid[rt->rate];
                alsa_rt->hw.channels_max = OUT_N_CHANNELS;
                sub = &rt->playback;
        } else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) {
-               if (rt->rate >= 0)
+               if (rt->rate < ARRAY_SIZE(rates))
                        alsa_rt->hw.rates = rates_alsaid[rt->rate];
                alsa_rt->hw.channels_max = IN_N_CHANNELS;
                sub = &rt->capture;