cppcheck: fix memory leak

Change-Id: Ic52ef3bcbca4c512fcb6e422a9b4e983cccbe41a
diff --git a/sc/source/core/opencl/formulagroupcl.cxx b/sc/source/core/opencl/formulagroupcl.cxx
index 9133006..915f1d9 100644
--- a/sc/source/core/opencl/formulagroupcl.cxx
+++ b/sc/source/core/opencl/formulagroupcl.cxx
@@ -262,6 +262,7 @@ bool FormulaGroupInterpreterOpenCL::interpret(ScDocument& rDoc, const ScAddress&
                        if( NULL==pArray )
                        {
                            fprintf(stderr,"Error: pArray is NULL!\n");
                            free(rResult);
                            return false;
                        }
                        if(ocl_calc.GetOpenclState())