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authorTakashi Iwai <tiwai@suse.de>2012-07-06 06:11:43 (GMT)
committerTakashi Iwai <tiwai@suse.de>2012-07-06 06:11:43 (GMT)
commit9e9b594661e8dee54955607277c937c3ff3a5f01 (patch)
tree48741ea76284cd4c1b8bab3e2decd82991ea5443 /sound
parent8663ff75cdca0a66f808e124c5592735793926af (diff)
downloadlinux-9e9b594661e8dee54955607277c937c3ff3a5f01.tar.xz
ALSA: usb-audio: Fix the first PCM interface assignment
In the new PCM streaming logic, the interface number is assigned to usb stream instance (subs->interface) after the format and rate setups are succeeded, but some codes are still passing subs->interface as the reference to helper functions. This leads to initializing with an invalid iface number (-1). This patch replaces the wrong references with the ones from the target fmt correctly. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/pcm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 54607f8..f0ede13 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -387,7 +387,7 @@ add_sync_ep:
subs->data_endpoint->sync_master = subs->sync_endpoint;
}
- if ((err = snd_usb_init_pitch(subs->stream->chip, subs->interface, alts, fmt)) < 0)
+ if ((err = snd_usb_init_pitch(subs->stream->chip, fmt->iface, alts, fmt)) < 0)
return err;
subs->cur_audiofmt = fmt;
@@ -450,7 +450,7 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
struct usb_interface *iface;
iface = usb_ifnum_to_if(subs->dev, fmt->iface);
alts = &iface->altsetting[fmt->altset_idx];
- ret = snd_usb_init_sample_rate(subs->stream->chip, subs->interface, alts, fmt, rate);
+ ret = snd_usb_init_sample_rate(subs->stream->chip, fmt->iface, alts, fmt, rate);
if (ret < 0)
return ret;
subs->cur_rate = rate;