}
wait_dev_list=""
-for interface_class_file in `/bin/find /sys/devices -name 'bInterfaceClass'`; do
+for interface_class_file in `find /sys/devices -name 'bInterfaceClass'`; do
interface_class=`cat $interface_class_file`
if [[ "$interface_class" == $INTERFACE_CLASS_MASS_STORAGE ]]; then
wait_dev_list="$wait_dev_list "`/bin/dirname $interface_class_file`