Unlink files opened as semaphores on releasing them.
diff --git a/usbutils.c b/usbutils.c
index 9aedc42..c54c921 100644
--- a/usbutils.c
+++ b/usbutils.c
@@ -3560,6 +3560,7 @@ fila:
free(sem);
free(key);
remove_in_use(bus_number, device_address);
+ unlink(name);
return;
#endif
}