From ce13e5e30648acbb5e84587fc550122b6af431ff Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Wed, 24 Apr 2013 15:22:34 -0500
Subject: [PATCH] dash compatiable

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 mk_mmc.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mk_mmc.sh b/mk_mmc.sh
index 1fa9d4c..552fdc5 100755
--- a/mk_mmc.sh
+++ b/mk_mmc.sh
@@ -1835,9 +1835,8 @@ while [ ! -z "$1" ] ; do
 	--mmc)
 		checkparm $2
 		MMC="$2"
-		if [[ "${MMC}" =~ "mmcblk" ]] ; then
-			PARTITION_PREFIX="p"
-		fi
+		unset PARTITION_PREFIX
+		echo ${MMC} | grep mmcblk >/dev/null && PARTITION_PREFIX="p"
 		check_root
 		check_mmc
 		;;