USB: HIDL: check the status of registerAsService

registerAsService call could fail. Hence check the return value.

Bug: 36704362
Test: Manually checked to see if usb hal service is running.
Change-Id: I46dcd74dbee6aba72cf344f10854e5d4b1b6de18

1 files changed, 12 insertions, 2 deletions

diff --git a/usb/service.cpp b/usb/service.cpp
index 4605a4c1..b52a36fd 100644
--- a/usb/service.cpp
+++ b/usb/service.cpp
@@ -27,13 +27,23 @@ using android::hardware::joinRpcThreadpool;
 using android::hardware::usb::V1_0::IUsb;
 using android::hardware::usb::V1_0::implementation::Usb;
 
-int main() {
+using android::status_t;
+using android::OK;
 
+int main() {
     android::sp<IUsb> service = new Usb();
 
     configureRpcThreadpool(1, true /*callerWillJoin*/);
-    service->registerAsService();
+    status_t status = service->registerAsService();
+
+    if (status != OK) {
+        ALOGE("Cannot register USB HAL service");
+        return 1;
+    }
 
     ALOGI("USB HAL Ready.");
     joinRpcThreadpool();
+    // Under noraml cases, execution will not reach this line.
+    ALOGI("USB HAL failed to join thread pool.");
+    return 1;
 }