Thread: Return from incompatible pointer type

I have a struct:

Code:

typedef int DATA;
typedef struct node {
struct node *next;
DATA digit; 
} NODE;

typedef struct {
struct node *head; 
int size; // number of elements in the list 
} LIST_HEAD;

I write reverseList fuction to reverses the order of the elements in the list, return a pointer to head of the reversed list.
Everything seem works fine, but I get the [Warning] return from incompatible pointer type at the return line. Please help to indicate my problem in this code. Thank you.

Code:

LIST_HEAD *reverseList(LIST_HEAD *list)	
   NODE  *p,*q,*r;
	p=list->head;
	q=NULL;

	while(p!=NULL)
	{
	    r=q;
	    q=p;
	    p=p->next;
	    q->next=r;
	}
	p = q;
	list->head=p;
	return p; //error here
}

You are returning *p, a pointer to a NODE. The way your function is declared, it wants to return a pointer to a LIST_HEAD. Typically your head node is not a different struct than regular nodes, and will contain data.