altos: Make stdio 8-bit clean by making pollchar return int

[fw/altos] / src / core / ao_stdio.c

diff --git a/src/core/ao_stdio.c b/src/core/ao_stdio.c
index 8cf66a239ac1db03d8d1d72c5c2bd7d44ab26a0c..4a832487e6102612c7aeed176247d75c981fd3d9 100644 (file)
--- a/src/core/ao_stdio.c
+++ b/src/core/ao_stdio.c
@@ -123,7 +123,7 @@ ao_echo(void)
 }
 
 int8_t
-ao_add_stdio(char (*pollchar)(void),
+ao_add_stdio(int (*pollchar)(void),
             void (*putchar)(char),
             void (*flush)(void)) __reentrant
 {