cpu/stm32l1: spi: Cast enum to unsigned int for comparison

8 years ago · 8bf9230d15
parent c61c1207df
commit 8bf9230d15
1 changed files with 2 additions and 2 deletions
--- a/cpu/stm32l1/periph/spi.c
+++ b/cpu/stm32l1/periph/spi.c
@ -158,7 +158,7 @@ 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]);
@ -167,7 +167,7 @@ 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]);