uqmi: wait forever registration if timeout set to 0

Give possibility to wait forever the registration by setting timeout
option to 0.

No timeout can be useful if the interface starts whereas no network is
available, because at the end of timeout the interface will be stopped
and never restarted.

Signed-off-by: Thomas Richard <[email protected]>

package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh

@@ -82,7 +82,7 @@ proto_qmi_setup() {
 	local uninitialized_timeout=0
 	while uqmi -s -d "$device" --get-pin-status | grep '"UIM uninitialized"' > /dev/null; do
 		[ -e "$device" ] || return 1
-		if [ "$uninitialized_timeout" -lt "$timeout" ]; then
+		if [ "$uninitialized_timeout" -lt "$timeout" -o "$timeout" = "0" ]; then
 			let uninitialized_timeout++
 			sleep 1;
 		else
@@ -195,7 +195,7 @@ proto_qmi_setup() {
 	local registration_timeout=0
 	while uqmi -s -d "$device" --get-serving-system | grep '"searching"' > /dev/null; do
 		[ -e "$device" ] || return 1
-		if [ "$registration_timeout" -lt "$timeout" ]; then
+		if [ "$registration_timeout" -lt "$timeout" -o "$timeout" = "0" ]; then
 			let registration_timeout++
 			sleep 1;
 		else