Circular linked list in C

Question

How to delete all the nodes in singly circular linked list? Is this code the right one ? I don't get the output in codeblocks when I tried for it. What is the mistake?

void deleteall()
{

    struct node *temp1=head,*temp2;
    do
    {

        while(temp1->next!=head)
        {

            temp1=temp1->next;
        }
        temp2=head;
        head=head->next;
        temp1->next=head;
        free(temp2);
    }while(temp1!=head);
    head=NULL;
    free(temp1);
    printf("deleted successfully\n");
}

Answer 1

To delete a singly circular linked list, start from the next of head and keep on deleting until you reach to head and then delete head of the list, like this:

struct node *temp1 = head->next, *temp2;

while (temp1 != head) {
    temp2 = temp1->next;
    free(temp1);
    temp1 = temp2;
}

free (head);
head = NULL;