merge_config.sh: Display usage if given too few arguments

Two or more arguments are always expected. Show usage and exit if
given less.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 5 insertions, 0 deletions

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 81b0c61bb9e2..2ab91b9b100d 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -77,6 +77,11 @@ while true; do
         esac
 done
 
+if [ "$#" -lt 2 ] ; then
+        usage
+        exit
+fi
+
 INITFILE=$1
 shift;