From 14788b3fe36f9acb760dcfed32cf0835adec81c0 Mon Sep 17 00:00:00 2001
From: Robert Konklewski <nythil@gmail.com>
Date: Thu, 14 Apr 2016 15:19:54 +0200
Subject: [PATCH] sersendf.c: fix printing signed 16-bit values.

The function converted int16_t to unsigned before printing it,
resulting in integer overflow.
---
 sersendf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sersendf.c b/sersendf.c
index 4b9d24b..162ce2d 100644
--- a/sersendf.c
+++ b/sersendf.c
@@ -73,7 +73,7 @@ void sersendf_P(PGM_P format_P, ...) {
           if (j == 1)
             serwrite_int8((int8_t)GET_ARG(int16_t));
           else if (j == 2)
-            serwrite_int16((uint16_t)GET_ARG(int16_t));
+            serwrite_int16((int16_t)GET_ARG(int16_t));
 					else
             serwrite_int32(GET_ARG(int32_t));
 					j = 0;