From b9a378c1ca630ba72d19640e7dee2ec4aec971ea Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Thu, 17 Nov 2022 14:38:41 -0500
Subject: [PATCH] rp2040: Fix boundary check for max gpio pin
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
src/rp2040/gpio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/rp2040/gpio.c b/src/rp2040/gpio.c
index bac67d236..98e077897 100644
--- a/src/rp2040/gpio.c
+++ b/src/rp2040/gpio.c
@@ -48,7 +48,7 @@ mask_to_pin(uint32_t mask)
struct gpio_out
gpio_out_setup(uint8_t pin, uint8_t val)
{
- if (pin > 30)
+ if (pin >= 30)
goto fail;
struct gpio_out g = { .bit=1<<pin };
gpio_out_reset(g, val);
@@ -93,7 +93,7 @@ gpio_out_write(struct gpio_out g, uint8_t val)
struct gpio_in
gpio_in_setup(uint8_t pin, int8_t pull_up)
{
- if (pin > 30)
+ if (pin >= 30)
goto fail;
struct gpio_in g = { .bit=1<<pin };
gpio_in_reset(g, pull_up);