txpower=${txpower:-$vif_txpower}
[ -z "$txpower" ] || iwconfig $device txpower ${txpower}dBm
- eval "$nas_cmd"
+ # fd 1000 is an inherited lock file descriptor for preventing concurrent
+ # init script executions. Close it here to prevent the nas daemon from
+ # inheriting it further to avoid holding the lock indefinitely.
+ eval "$nas_cmd 1000>&-"
}