umbim: explicitly check for PIN1 state

PIN2 is used only to restrict changing of fixed dialling feature,
does not affect network registration. Therefore explicitly check for
PIN1 state during connection setup, which is required for network
registration.

Signed-off-by: Martin Schiller <[email protected]>
[Updated commit description]
Signed-off-by: Lech Perczak <[email protected]>

package/network/utils/umbim/files/lib/netifd/proto/mbim.sh

@@ -86,7 +86,8 @@ _proto_mbim_setup() {
 	tid=$((tid + 1))
 
 	echo "mbim[$$]" "Checking pin"
-	umbim $DBG -n -t $tid -d $device pinstate || {
+	umbim $DBG -n -t $tid -d $device pinstate
+	[ $? -eq 2 ] && {
 		echo "mbim[$$]" "PIN required"
 		tid=$((tid + 1))
 		umbim $DBG -t $tid -d "$device" disconnect