Static code analysis scan issue fix

Fix the issues found during code static scan

Tested:
test in board, function works fine.
1. busctl set-property for watchdog, it works fine.
2. It works by running "ipmitool chassis power soft".
3. run "ipmitool raw 0x6 0x46 1", get expected user information.

Change-Id: I7a2cc3c934db6a7531f8a8ea05956cb6d6337633
Signed-off-by: Chen,Yugang <yugang.chen@linux.intel.com>
diff --git a/app/watchdog_service.cpp b/app/watchdog_service.cpp
index c567ca9..0eedf1b 100644
--- a/app/watchdog_service.cpp
+++ b/app/watchdog_service.cpp
@@ -153,7 +153,8 @@
         if (wasValid)
         {
             // Retry the request once in case the cached service was stale
-            return setProperty(key, val);
+            setProperty(key, val);
+            return;
         }
         log<level::ERR>("WatchdogService: Method error setting property",
                         entry("PROPERTY=%s", key.c_str()));