gps event spam fix?

linux/acs/GpsHyperionLinuxController.cpp

@@ -169,18 +169,17 @@ bool GpsHyperionLinuxController::readGpsDataFromGpsd() {
   if (readMode == ReadModes::SOCKET) {
     // Poll the GPS.
     if (gps_waiting(&gps, 0)) {
-      if (-1 == gps_read(&gps)) {
+      int retval = gps_read(&gps);
+      if (retval < 0) {
         readError();
         return false;
+      } else if (retval == 0) {
+        oneShotSwitches.gpsReadFailedSwitch = true;
+        ReturnValue_t result = handleGpsReadData();
+        if (result != returnvalue::OK) {
+          return false;
+        }
       }
-      oneShotSwitches.gpsReadFailedSwitch = true;
-      ReturnValue_t result = handleGpsReadData();
-      if (result == returnvalue::OK) {
-        return true;
-      } else {
-        return false;
-      }
-      noModeSetCntr = 0;
     } else {
       return false;
     }

linux/acs/GpsHyperionLinuxController.h

@@ -81,7 +81,6 @@ class GpsHyperionLinuxController : public ExtendedControllerBase {
   } oneShotSwitches;
 
   bool debugHyperionGps = false;
-  int32_t noModeSetCntr = 0;
 
   // Returns true if the function should be called again or false if other
   // controller handling can be done.