base-files: profile: fix error sh: 1: unknown operand

Handle errors when SHLVL isn't set.

(From OE-Core rev: 7ef2c9ab669785e5e073d6f925f1a3f447fc31d9)

Signed-off-by: Felix Nilsson <felixn@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 5df53fcfe3b70a5312fced3fcc1ba6290f2ee794)
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/recipes-core/base-files/base-files/profile b/meta/recipes-core/base-files/base-files/profile
index bded3757cc..5e8393c91c 100644
--- a/meta/recipes-core/base-files/base-files/profile
+++ b/meta/recipes-core/base-files/base-files/profile
@@ -58,7 +58,7 @@ resize() {
         fi
         # only do this for /dev/tty[A-z] which are typically
         # serial ports
-        if [ $FIRSTTIMESETUP -eq 1 -a $SHLVL -eq 1 ] ; then
+        if [ $FIRSTTIMESETUP -eq 1 -a ${SHLVL:-1} -eq 1 ] ; then
                 case $(tty 2>/dev/null) in
                         /dev/tty[A-z]*) resize >/dev/null;;
                 esac