From 81feb558ef3177f9b7a160f885909cd634b79367 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joakim=20Nohlg=C3=A5rd?= <joakim.nohlgard@eistec.se>
Date: Sun, 17 Jan 2016 12:04:34 +0100
Subject: [PATCH] cpu/stm32f0: spi: Cast enum to unsigned int for comparison

---
 cpu/stm32f0/periph/spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpu/stm32f0/periph/spi.c b/cpu/stm32f0/periph/spi.c
index 6a337c97d2..3b35557dd3 100644
--- a/cpu/stm32f0/periph/spi.c
+++ b/cpu/stm32f0/periph/spi.c
@@ -162,7 +162,7 @@ int spi_conf_pins(spi_t dev)
 
 int spi_acquire(spi_t dev)
 {
-    if (dev >= SPI_NUMOF) {
+    if ((unsigned int)dev >= SPI_NUMOF) {
         return -1;
     }
     mutex_lock(&locks[dev]);
@@ -171,7 +171,7 @@ int spi_acquire(spi_t dev)
 
 int spi_release(spi_t dev)
 {
-    if (dev >= SPI_NUMOF) {
+    if ((unsigned int)dev >= SPI_NUMOF) {
         return -1;
     }
     mutex_unlock(&locks[dev]);