ALSA: usb-audio: clear SUBSTREAM_FLAG_SYNC_EP_STARTED on error

If setting the interface fails, the SUBSTREAM_FLAG_SYNC_EP_STARTED
should be cleared.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 1a9a01853688f9895ac3c80f04ec38735f1aa8f1..0c1a95dd55382f659a5aea7e8f762e6f9e4e88ea 100644 (file)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -246,6 +246,7 @@ static int start_endpoints(struct snd_usb_substream *subs, bool can_sleep)
                                                subs->sync_endpoint->iface,
                                                subs->sync_endpoint->alt_idx);
                        if (err < 0) {
+                               clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags);
                                snd_printk(KERN_ERR
                                           "%d:%d:%d: cannot set interface (%d)\n",
                                           subs->dev->devnum,