From d033692df18c1ba6385b20871e8fe5fa5a1e3514 Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Sun, 4 Mar 2012 22:51:15 -0500
Subject: functions: check for length before using array

This avoids passing an empty array to umount

Signed-off-by: Dave Reisner <dreisner@archlinux.org>
---
 functions | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'functions')

diff --git a/functions b/functions
index 833711b..a3c2660 100644
--- a/functions
+++ b/functions
@@ -505,7 +505,9 @@ umount_all() {
 		mounts=("$target" "${mounts[@]}")
 	done < <(findmnt -mrunRo TARGET,FSTYPE,OPTIONS /)
 
-	umount -r "${mounts[@]}"
+	if (( ${#mounts[*]} )); then
+		umount -r "${mounts[@]}"
+	fi
 
 }
 
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