Handle a case where the profile initialization fails.

Change-Id: Ifd1ab147926ab4f1d34161840d17fdf1ab3f9810

sc/source/core/opencl/opencl_device.cxx

@@ -428,9 +428,16 @@ ds_device getDeviceSelection(const char* sProfilePath, bool bForceSelection)
     {
         /* Setup */
         ds_status status;
-        ds_profile* profile;
+        ds_profile* profile = NULL;
         status = initDSProfile(&profile, "LibreOffice v0.1");
 
+        if (!profile)
+        {
+            // failed to initialize profile.
+            selectedDevice.oclDeviceID = NULL;
+            return selectedDevice;
+        }
+
         /* Try reading scores from file */
         std::string tmpStr(sProfilePath);
         const char* fileName = tmpStr.append("sc_opencl_device_profile.dat").c_str();