From 806815778fe75f13b569a1b5fe6d6d74a50c89ff Mon Sep 17 00:00:00 2001
From: Aaron Marcher <me@drkhsh.at>
Date: Sun, 20 May 2018 23:53:26 +0200
Subject: [PATCH] swap_perc: check for division by zero

---
 components/swap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/components/swap.c b/components/swap.c
index c005691..465ffd4 100644
--- 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);
 	}