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Double verification of the string before invoking it.

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This commit is contained in:
Ronny Nilsson 2019-12-03 15:38:58 +01:00
parent 0a80afc550
commit 3ccdcb4140
1 changed files with 1 additions and 1 deletions
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2
iopupgrade/files/sbin/iopu_chroot
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@ -25,7 +25,7 @@ source /lib/upgrade/iopsys.sh
# only call function if it exists
function_call() {
if type "$1" 2>/dev/null >/dev/null
if [ -n "$1" ] && type "$1" 2>/dev/null >/dev/null
then
$1 "$@" || exit
fi