diff options
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 3b5135c93062..4132522ac90f 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -237,6 +237,7 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) subs->datainterval = fmt->datainterval; subs->syncpipe = subs->syncinterval = 0; subs->maxpacksize = fmt->maxpacksize; + subs->syncmaxsize = 0; subs->fill_max = 0; /* we need a sync pipe in async OUT or adaptive IN mode */ @@ -283,6 +284,7 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) subs->syncinterval = get_endpoint(alts, 1)->bInterval - 1; else subs->syncinterval = 3; + subs->syncmaxsize = le16_to_cpu(get_endpoint(alts, 1)->wMaxPacketSize); } /* always fill max packet size */ @@ -466,7 +468,7 @@ static int hw_check_valid_format(struct snd_usb_substream *subs, return 0; } /* check whether the period time is >= the data packet interval */ - if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) { + if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL) { ptime = 125 * (1 << fp->datainterval); if (ptime > pt->max || (ptime == pt->max && pt->openmax)) { hwc_debug(" > check: ptime %u > max %u\n", ptime, pt->max); @@ -674,8 +676,10 @@ static int snd_usb_pcm_check_knot(struct snd_pcm_runtime *runtime, if (!needs_knot) return 0; - subs->rate_list.count = count; subs->rate_list.list = kmalloc(sizeof(int) * count, GFP_KERNEL); + if (!subs->rate_list.list) + return -ENOMEM; + subs->rate_list.count = count; subs->rate_list.mask = 0; count = 0; list_for_each_entry(fp, &subs->fmt_list, list) { @@ -734,7 +738,7 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre } param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME; - if (snd_usb_get_speed(subs->dev) != USB_SPEED_HIGH) + if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) /* full speed devices have fixed data packet interval */ ptmin = 1000; if (ptmin == 1000) |