reserve: update reserve.[ch] from upstream git

src/modules/reserve.c

@@ -43,16 +43,15 @@ struct rd_device {
 
 	DBusConnection *connection;
 
-	int owning:1;
-	int registered:1;
-	int filtering:1;
-	int gave_up:1;
+	unsigned owning:1;
+	unsigned registered:1;
+	unsigned filtering:1;
+	unsigned gave_up:1;
 
 	rd_request_cb_t request_cb;
 	void *userdata;
 };
 
-
 #define SERVICE_PREFIX "org.freedesktop.ReserveDevice1."
 #define OBJECT_PREFIX "/org/freedesktop/ReserveDevice1/"
 
@@ -297,6 +296,7 @@ static DBusHandlerResult filter_handler(
 	dbus_error_init(&error);
 
 	d = userdata;
+	assert(d->ref >= 1);
 
 	if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameLost")) {
 		const char *name;
@@ -560,7 +560,7 @@ void rd_release(
 
 	assert(d->ref > 0);
 
-	if (--d->ref)
+	if (--d->ref > 0)
 		return;
 
 
@@ -575,17 +575,11 @@ void rd_release(
 			d->connection,
 			d->object_path);
 
-	if (d->owning) {
-		DBusError error;
-		dbus_error_init(&error);
-
+	if (d->owning)
 		dbus_bus_release_name(
 			d->connection,
 			d->service_name,
-			&error);
-
-		dbus_error_free(&error);
-	}
+			NULL);
 
 	free(d->device_name);
 	free(d->application_name);

src/modules/reserve.h

@@ -45,7 +45,7 @@ typedef int (*rd_request_cb_t)(
  * the error was caused D-Bus. */
 int rd_acquire(
 	rd_device **d,                /* On success a pointer to the newly allocated rd_device object will be filled in here */
-	DBusConnection *connection,
+	DBusConnection *connection,   /* Session bus (when D-Bus learns about user busses we should switchg to user busses) */
 	const char *device_name,      /* The device to lock, e.g. "Audio0" */
 	const char *application_name, /* A human readable name of the application, e.g. "PulseAudio Sound Server" */
 	int32_t priority,             /* The priority for this application. If unsure use 0 */