void test(void);
int intReturnFunc(void); 
int intPassFunc(int i);

void test(void)
{
    int i;
    do
    {   /* Just to make sure i is used */
        i = intPassFunc(intReturnFunc()); /* MISRA 12.2 on this line */
    } while ( 0 == i);
}

int intReturnFunc(void)
{
    return 1;
} 

int intPassFunc(int i)
{
    return i;
}