Reverse linked list

Program of reverse linked list
# include <stdio.h>
# include <malloc.h>
struct node
{
int info;
struct node *link;
}*start;
main()
{
int i,n,item;
start=NULL;
printf("How many nodes you want : ");
scanf("%d",&n);
for(i=0;i<n;i++) {
printf("Enter the item %d : ",i+1);
scanf("%d",&item);
create_list(item);
}
printf("Initially the linked list is :\n");
display();
reverse();
printf("Linked list after reversing is :\n");
display();
}/*End of main()*/
create_list(int num)
{
struct node *q,*temp;
temp= malloc(sizeof(struct node));
temp->info=num;
temp->link=NULL;
if(start==NULL)
start=temp;
else
{
q=start;
while(q->link!=NULL) q=q->link;
q->link=temp;
}
}/*End of create_list() */
display()
{
struct node *q;
if(start == NULL)
{
printf("List is empty\n");
return;
}
q=start;
while(q!=NULL)
{
printf("%d ", q->info);
q=q->link;
}
printf("\n");
}/*End of display()*/
reverse()
{
struct node *p1,*p2,*p3;
if(start->link==NULL)    /*only one element*/
return;
p1=start;
p2=p1->link;
p3=p2->link;
p1->link=NULL;
p2->link=p1;
while(p3!=NULL)
{
p1=p2;
p2=p3;
p3=p3->link;
p2->link=p1;
}
start=p2;
}/*End of reverse() */