altos/lpc: Missing parens around ao_gpio_set macro

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/lpc/ao_arch_funcs.h b/src/lpc/ao_arch_funcs.h
index 3cd873ec89c3017a4364fbd063935e4d094be012..204d1227dd5f525d02579efd85dac30db4a55096 100644 (file)
--- a/src/lpc/ao_arch_funcs.h
+++ b/src/lpc/ao_arch_funcs.h
@@ -25,7 +25,7 @@
 
 #define lpc_all_bit(port,bit)  (((port) << 5) | (bit))
 
-#define ao_gpio_set(port, bit, pin, v) (lpc_gpio.byte[lpc_all_bit(port,bit)] = v)
+#define ao_gpio_set(port, bit, pin, v) (lpc_gpio.byte[lpc_all_bit(port,bit)] = (v))
 
 #define ao_gpio_get(port, bit, pin)    (lpc_gpio_byte[lpc_all_bit(port,bit)])