Function that returns pointer

#include <stdio.h>
#include <stdlib.h>

int *fun();
int *fun2();

main()
{
    int *ptr;
    ptr=fun();
    printf("%d \n",*ptr);

    int *ptr2;
    ptr2=fun2();
    printf("%d \n",*ptr2);

}
int *fun()
{
    int *point = malloc(sizeof *point); /* Mandatory. */
    *point=12;
    return point;
}

int *fun2()
{
    int a = 22;
    int *point = &a;
    return point;
}