Fix unsigned/signed comparison in fanPin loop

8 years ago · 37ac540a26
1 changed files with 1 additions and 1 deletions
--- a/Marlin/temperature.cpp
+++ b/Marlin/temperature.cpp
@ -479,7 +479,7 @@ int Temperature::getHeaterPower(int heater) {
    }
 
    uint8_t fanDone = 0;
-    for (int8_t f = 0; f < COUNT(fanPin); f++) {
+    for (uint8_t f = 0; f < COUNT(fanPin); f++) {
      int8_t pin = fanPin[f];
      if (pin >= 0 && !TEST(fanDone, fanBit[f])) {
        unsigned char newFanSpeed = TEST(fanState, fanBit[f]) ? EXTRUDER_AUTO_FAN_SPEED : 0;