diff options
| author | cg <cg@FreeBSD.org> | 2001-06-14 13:31:30 +0000 |
|---|---|---|
| committer | cg <cg@FreeBSD.org> | 2001-06-14 13:31:30 +0000 |
| commit | 2ec7f0d19f7d1d4e02ec98b605a460f015c9f6b5 (patch) | |
| tree | 9f09ca16ead4ae8551bd8e8a2b22dfd4bc4becc8 /sys/dev/sound/pcm/vchan.c | |
| parent | 089e07ab6ac0a4433ae32cbdb9e4c1b4936995a6 (diff) | |
| download | FreeBSD-src-2ec7f0d19f7d1d4e02ec98b605a460f015c9f6b5.zip FreeBSD-src-2ec7f0d19f7d1d4e02ec98b605a460f015c9f6b5.tar.gz | |
various locking fixes, rework open logic and channel registration
PR: kern/28084
Diffstat (limited to 'sys/dev/sound/pcm/vchan.c')
| -rw-r--r-- | sys/dev/sound/pcm/vchan.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/dev/sound/pcm/vchan.c b/sys/dev/sound/pcm/vchan.c index dc5358d..3866ece 100644 --- a/sys/dev/sound/pcm/vchan.c +++ b/sys/dev/sound/pcm/vchan.c @@ -332,7 +332,7 @@ sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS) struct snddev_info *d; struct snddev_channel *sce; struct pcm_channel *c; - int err, newcnt, cnt; + int err, oldcnt, newcnt, cnt; d = oidp->oid_arg1; @@ -343,6 +343,7 @@ sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS) if ((c->direction == PCMDIR_PLAY) && (c->flags & CHN_F_VIRTUAL)) cnt++; } + oldcnt = cnt; newcnt = cnt; err = sysctl_handle_int(oidp, &newcnt, sizeof(newcnt), req); @@ -379,6 +380,8 @@ addok: if (err == 0) cnt++; } + if (SLIST_EMPTY(&c->children)) + c->flags &= ~CHN_F_BUSY; } else if (newcnt < cnt) { while (err == 0 && newcnt < cnt) { SLIST_FOREACH(sce, &d->channels, link) { |
