Merge pull request #10471 from etracer65/current_meter_div0_fix

Fix possible div-by-zero in current meter
betaflight · Oct 3, 2021 · 3827a62 · 3827a62
1 parent 4f41a95
commit 3827a62
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/sensors/current.c b/src/main/sensors/current.c
@@ -116,7 +116,7 @@ static int32_t currentMeterADCToCentiamps(const uint16_t src)
 
     int32_t millivolts = ((uint32_t)src * getVrefMv()) / 4096;
     // y=x/m+b m is scale in (mV/10A) and b is offset in (mA)
-    int32_t centiAmps = (millivolts * 10000 / (int32_t)config->scale + (int32_t)config->offset) / 10;
+    int32_t centiAmps = config->scale ? (millivolts * 10000 / (int32_t)config->scale + (int32_t)config->offset) / 10 : 0;
 
     DEBUG_SET(DEBUG_CURRENT_SENSOR, 0, millivolts);
     DEBUG_SET(DEBUG_CURRENT_SENSOR, 1, centiAmps);