altos/lpc: Fix stdio wakeup on serial IRQ

[fw/altos] / src / lpc / ao_serial_lpc.c

diff --git a/src/lpc/ao_serial_lpc.c b/src/lpc/ao_serial_lpc.c
index 0011744d2e931258e1c76898d2a2a8f7e8e86cc4..d5cf930af949076bf2829c489f69ee2ea001178b 100644 (file)
--- a/src/lpc/ao_serial_lpc.c
+++ b/src/lpc/ao_serial_lpc.c
@@ -66,8 +66,9 @@ lpc_usart_isr(void)
        }
        if (wake_input) {
                ao_wakeup(&ao_usart_rx_fifo);
-               if (stdin)
-                       ao_wakeup(&ao_stdin_ready);
+#if USE_SERIAL_0_STDIN
+               ao_wakeup(&ao_stdin_ready);
+#endif
        }
 }