X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fpower%2Fds2760_battery.c;h=a52d4a11652d57aa7b045fa225777fdaecb252f2;hb=15a5b0a4912d98a9615ef457c7bde8d08195a771;hp=1d768928e0bbaf0c9fe61923bcaa0f10b139062c;hpb=9229f43f48d1b454a4e8b83985d0195b1760a550;p=karo-tx-linux.git

diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c
index 1d768928e0bb..a52d4a11652d 100644
--- a/drivers/power/ds2760_battery.c
+++ b/drivers/power/ds2760_battery.c
@@ -180,10 +180,13 @@ static int ds2760_battery_read_status(struct ds2760_device_info *di)
 	di->empty_uAh = battery_interpolate(scale, di->temp_C / 10);
 	di->empty_uAh *= 1000; /* convert to µAh */
 
-	/* From Maxim Application Note 131: remaining capacity =
-	 * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */
-	di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) /
-			    (di->full_active_uAh - di->empty_uAh);
+	if (di->full_active_uAh == di->empty_uAh)
+		di->rem_capacity = 0;
+	else
+		/* From Maxim Application Note 131: remaining capacity =
+		 * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */
+		di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) /
+				    (di->full_active_uAh - di->empty_uAh);
 
 	if (di->rem_capacity < 0)
 		di->rem_capacity = 0;