battery_remaining: check for division by zero

diff --git a/components/battery.c b/components/battery.c
index fa525be..8bfe42a 100644 (file)
--- a/components/battery.c
+++ b/components/battery.c
@@ -107,6 +107,10 @@
                                return NULL;
                        }
 
+                       if (current_now == 0) {
+                               return NULL;
+                       }
+
                        timeleft = (double)charge_now / (double)current_now;
                        h = timeleft;
                        m = (timeleft - (double)h) * 60;