VOIDRETURN1

Message        The function "<name>" has return type void.  The
               return statement must not specify a return value even
               if the return expression has void type.

Description    The current function was declared with a void return
               type.  Although some C compilers allow such a
               function to return a void expression, this is a
               violation of the C standard and may not be portable.

User Action    Modify the program so that the return statement does
               not specify a return value.