uqmi: fix acquiring PIN status

Evaluating the return value of 'json_load' didn't work in the
intended way resulting in PIN status no longer being read on modems
where --get-pin-status doesn't fail.
Fix this by trying --get-pin-status first and checking if pin1_status
field exists in JSON, and if it doesn't try again with
--uim-get-sim-state.

Fixes: openwrt#9501
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

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

@@ -105,10 +105,12 @@ proto_qmi_setup() {
 			}
 		}
 	else
-		. /usr/share/libubox/jshn.sh
-		json_load "$(uqmi -s -d "$device" --get-pin-status)" 2>&1 | grep -q Failed &&
-			json_load "$(uqmi -s -d "$device" --uim-get-sim-state)"
+		json_load "$(uqmi -s -d "$device" --get-pin-status)"
 		json_get_var pin1_status pin1_status
+		if [ -z "$pin1_status" ]; then
+			json_load "$(uqmi -s -d "$device" --uim-get-sim-state)"
+			json_get_var pin1_status pin1_status
+		fi
 		json_get_var pin1_verify_tries pin1_verify_tries
 
 		case "$pin1_status" in
@@ -152,6 +154,7 @@ proto_qmi_setup() {
 				return 1
 			;;
 		esac
+		json_cleanup
 	fi
 
 	if [ -n "$plmn" ]; then
@@ -247,7 +250,8 @@ proto_qmi_setup() {
 
 	echo "Starting network $interface"
 
-	pdptype=$(echo "$pdptype" | awk '{print tolower($0)}')
+	pdptype="$(echo "$pdptype" | awk '{print tolower($0)}')"
+
 	[ "$pdptype" = "ip" -o "$pdptype" = "ipv6" -o "$pdptype" = "ipv4v6" ] || pdptype="ip"
 
 	if [ "$pdptype" = "ip" ]; then