diff --git a/sys/dev/sound/pcm/sound.c b/sys/dev/sound/pcm/sound.c
--- a/sys/dev/sound/pcm/sound.c
+++ b/sys/dev/sound/pcm/sound.c
@@ -300,29 +300,18 @@
 	if (!PCM_REGISTERED(d))
 		return (ENODEV);
 
-	PCM_LOCK(d);
-	PCM_WAIT(d);
 	val = (d->flags & SD_F_BITPERFECT) ? 1 : 0;
-	PCM_ACQUIRE(d);
-	PCM_UNLOCK(d);
-
 	err = sysctl_handle_int(oidp, &val, 0, req);
 
 	if (err == 0 && req->newptr != NULL) {
-		if (!(val == 0 || val == 1)) {
-			PCM_RELEASE_QUICK(d);
+		if (!(val == 0 || val == 1))
 			return (EINVAL);
-		}
 
 		PCM_LOCK(d);
-
 		d->flags &= ~SD_F_BITPERFECT;
 		d->flags |= (val != 0) ? SD_F_BITPERFECT : 0;
-
-		PCM_RELEASE(d);
 		PCM_UNLOCK(d);
-	} else
-		PCM_RELEASE_QUICK(d);
+	}
 
 	return (err);
 }