Don't treat pthread_t as a signed value type

1. HID host treats pthread_t as a signed value. Some platform may define
it as unsigned type.
2. HID host uses -1 as invalid pthread ID. pthread does not define
invalid thread ID.


Bug: 285750089
Test: Floss test "Two BLE connections"
Change-Id: I77eb1596910ee1a6c9c2244beff7ff382ca57ba0

parent c82004bf

system/btif/co/bta_hh_co.cc

+3 −3

Original line number	Diff line number	Diff line
		@@ -493,11 +493,11 @@ void bta_hh_co_close(btif_hh_device_t* p_dev) {
		#endif // ENABLE_UHID_SET_REPORT

		/* Stop the polling thread */
		if (p_dev->hh_keep_polling) {
		p_dev->hh_keep_polling = 0;
		if (p_dev->hh_poll_thread_id > 0) {
		pthread_join(p_dev->hh_poll_thread_id, NULL);
		}
		p_dev->hh_poll_thread_id = -1;
		}
		/* UHID file descriptor is closed by the polling thread */
		}