nrf/modules/machine/adc: Don't compare -1 to an unsigned number.

Clang warns about this.
7 years ago · 17769452d4
1 changed files with 1 additions and 1 deletions
--- a/ports/nrf/modules/machine/adc.c
+++ b/ports/nrf/modules/machine/adc.c
@ -97,7 +97,7 @@ STATIC int adc_find(mp_obj_t id) {
    int adc_idx = adc_id;

    if (adc_idx >= 0 && adc_idx <= MP_ARRAY_SIZE(machine_adc_obj)
-        && machine_adc_obj[adc_idx].id != -1) {
+        && machine_adc_obj[adc_idx].id != (uint8_t)-1) {
        return adc_idx;
    }
    nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,