Resolve segfault when running send-broadcast command while
statscompanion service is not connected

Test: statsd, statsd_test

Change-Id: Ie98de1884f8d852c31c14db146d3da44cfc5aa8b
diff --git a/cmds/statsd/src/StatsService.cpp b/cmds/statsd/src/StatsService.cpp
index 10952a9..ef01ec7 100644
--- a/cmds/statsd/src/StatsService.cpp
+++ b/cmds/statsd/src/StatsService.cpp
@@ -320,9 +320,15 @@
         return UNKNOWN_ERROR;
     }
     auto receiver = mConfigManager->GetConfigReceiver(ConfigKey(uid, name));
-    auto sc = getStatsCompanionService();
-    sc->sendBroadcast(String16(receiver.first.c_str()), String16(receiver.second.c_str()));
-    ALOGD("StatsService::trigger broadcast succeeded to %s, %s", args[1].c_str(), args[2].c_str());
+    sp<IStatsCompanionService> sc = getStatsCompanionService();
+    if (sc != nullptr) {
+        sc->sendBroadcast(String16(receiver.first.c_str()), String16(receiver.second.c_str()));
+        ALOGD("StatsService::trigger broadcast succeeded to %s, %s", args[1].c_str(),
+              args[2].c_str());
+    } else {
+        ALOGD("Could not access statsCompanion");
+    }
+
     return NO_ERROR;
 }