mcast: add multicast proxy support (IPv4 and IPv6)

[~andy/linux] / sound / usb / pcm.c

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index c6593101c049b88ca6e5661f8765b3f3df0b4d33..d82e378d37cbb7202aaa487b6003b6b171b79eab 100644 (file)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -511,6 +511,16 @@ static int configure_sync_endpoint(struct snd_usb_substream *subs)
        struct snd_usb_substream *sync_subs =
                &subs->stream->substream[subs->direction ^ 1];
 
+       if (subs->sync_endpoint->type != SND_USB_ENDPOINT_TYPE_DATA ||
+           !subs->stream)
+               return snd_usb_endpoint_set_params(subs->sync_endpoint,
+                                                  subs->pcm_format,
+                                                  subs->channels,
+                                                  subs->period_bytes,
+                                                  subs->cur_rate,
+                                                  subs->cur_audiofmt,
+                                                  NULL);
+
        /* Try to find the best matching audioformat. */
        list_for_each_entry(fp, &sync_subs->fmt_list, list) {
                int score = match_endpoint_audioformats(fp, subs->cur_audiofmt,