modemmanager: add missing interface argument to function modemmanager_check_state

The variable interface is used in the sub-function 'modemmanager_check_state'.
However, this is not an argument of the function and so the global value
is used. Addding the variable as an function call argument fixes this.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/modemmanager/files/lib/netifd/proto/modemmanager.sh

@@ -355,8 +355,9 @@ modemmanager_check_state_locked() {
 
 modemmanager_check_state() {
 	local device="$1"
-	local modemstatus="$2"
-	local pincode="$3"
+	local interface="$2"
+	local modemstatus="$3"
+	local pincode="$4"
 
 	local state
 
@@ -486,7 +487,7 @@ proto_modemmanager_setup() {
 	}
 	echo "modem available at ${modempath}"
 
-	modemmanager_check_state "$device" "${modemstatus}" "$pincode"
+	modemmanager_check_state "$device" "$interface" "${modemstatus}" "$pincode"
 	[ "$?" -ne "0" ] && return 1
 
 	# always cleanup before attempting a new connection, just in case