swap_perc: check for division by zero

2018-05-20 23:53:26 +02:00 · 2018-05-20 23:53:26 +02:00 · 806815778f
parent d8ce4e6942
commit 806815778f
1 changed files with 4 additions and 0 deletions
--- a/components/swap.c
+++ b/components/swap.c
@ -76,6 +76,10 @@
 		}
 		sscanf(match, "SwapFree: %ld kB\n", &free);

+		if (total == 0) {
+			return NULL;
+		}
+
 		return bprintf("%d%%", 100 * (total - free - cached) / total);
 	}