D47268.diff
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	diff --git a/sys/dev/sound/pcm/vchan.c b/sys/dev/sound/pcm/vchan.c
	--- a/sys/dev/sound/pcm/vchan.c
	+++ b/sys/dev/sound/pcm/vchan.c
	@@ -928,7 +928,6 @@
	CHN_LOCK(c);
	if (c->direction == direction &&
	((c->flags & CHN_F_HAS_VCHAN) \|\| (vcnt == 0 &&
	- c->refcount < 1 &&
	!(c->flags & (CHN_F_BUSY \| CHN_F_VIRTUAL))))) {
	/*
	* Reuse hw channel with vchans already
	@@ -987,12 +986,11 @@
	}
	CHN_FOREACH_SAFE(ch, c, nch, children) {
	CHN_LOCK(ch);
	- if (vcnt == 1 && c->refcount > 0) {
	+ if (vcnt == 1 && ch->flags & CHN_F_BUSY) {
	CHN_UNLOCK(ch);
	break;
	}
	- if (!(ch->flags & CHN_F_BUSY) &&
	- ch->refcount < 1) {
	+ if (!(ch->flags & CHN_F_BUSY)) {
	err = vchan_destroy(ch);
	if (err == 0)
	vcnt--;