global: make sure to check service before checking service->port to prevent crashes

1 files changed, 1 insertions, 1 deletions

diff --git a/src/file_relay.c b/src/file_relay.c
index 39382fb..b1adb4f 100644
--- a/src/file_relay.c
+++ b/src/file_relay.c
@@ -38,7 +38,7 @@
  */
 file_relay_error_t file_relay_client_new(idevice_t device, lockdownd_service_descriptor_t service, file_relay_client_t *client)
 {
-        if (!device || service->port == 0 || !client || *client) {
+        if (!device || !service || service->port == 0 || !client || *client) {
                 return FILE_RELAY_E_INVALID_ARG;
         }