From 39a66e481183fb814cb44ee9652cf7cd42bb1de1 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Tue, 13 Aug 2013 16:18:18 -0500
Subject: [PATCH] bug: protect against undefined conf_uboot_no_uenvcmd

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 mk_mmc.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mk_mmc.sh b/mk_mmc.sh
index 06c3879..2d58c27 100755
--- a/mk_mmc.sh
+++ b/mk_mmc.sh
@@ -1531,7 +1531,12 @@ process_dtb_conf () {
 	if [ "${conf_uboot_use_uenvcmd}" ] ; then
 		conf_entrypt="uenvcmd"
 	else
-		conf_entrypt="${conf_uboot_no_uenvcmd}"
+		if [ ! "x${conf_uboot_no_uenvcmd}" = "x" ] ; then
+			conf_entrypt="${conf_uboot_no_uenvcmd}"
+		else
+			echo "Error: [conf_uboot_no_uenvcmd] not defined, stopping..."
+			exit
+		fi
 	fi
 }