From b543f2dc673beeaceeed9d9a79b43c507f65bc59 Mon Sep 17 00:00:00 2001
From: Jose Alamos <jose.alamos@haw-hamburg.de>
Date: Tue, 30 Oct 2018 23:43:24 +0100
Subject: [PATCH] tests/driver_my9221: fix for loop indexes

---
 tests/driver_my9221/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/driver_my9221/main.c b/tests/driver_my9221/main.c
index 96223591b1..54433f6ae7 100644
--- a/tests/driver_my9221/main.c
+++ b/tests/driver_my9221/main.c
@@ -51,7 +51,8 @@ int main(void)
         my9221_set_led(&dev, i, MY9221_LED_OFF);
     }
     xtimer_usleep(TEST_WAIT);
-    for (unsigned i=dev.params.leds; i > 0 ; --i) {
+    for (unsigned j=dev.params.leds; j > 0 ; --j) {
+        unsigned i = j-1;
         my9221_set_led(&dev, i, MY9221_LED_ON);
         xtimer_usleep(TEST_WAIT);
         my9221_set_led(&dev, i, MY9221_LED_OFF);