creating and displaying linked list in c

1#include <stdio.h>
2#include <stdlib.h>
3
4struct node 
5{
6    int num;                        //Data of the node
7    struct node *nextptr;           //Address of the next node
8}*stnode;
9
10void createNodeList(int n); // function to create the list
11void displayList();         // function to display the list
12
13int main()
14{
15    int n;
16		printf("\n\n Linked List : To create and display Singly Linked List :\n");
17		printf("-------------------------------------------------------------\n");
18		
19    printf(" Input the number of nodes : ");
20    scanf("%d", &n);
21    createNodeList(n);
22    printf("\n Data entered in the list : \n");
23    displayList();
24    return 0;
25}
26void createNodeList(int n)
27{
28    struct node *fnNode, *tmp;
29    int num, i;
30    stnode = (struct node *)malloc(sizeof(struct node));
31
32    if(stnode == NULL) //check whether the fnnode is NULL and if so no memory allocation
33    {
34        printf(" Memory can not be allocated.");
35    }
36    else
37    {
38// reads data for the node through keyboard
39
40        printf(" Input data for node 1 : ");
41        scanf("%d", &num);
42        stnode->num = num;      
43        stnode->nextptr = NULL; // links the address field to NULL
44        tmp = stnode;
45// Creating n nodes and adding to linked list
46        for(i=2; i<=n; i++)
47        {
48            fnNode = (struct node *)malloc(sizeof(struct node));
49            if(fnNode == NULL)
50            {
51                printf(" Memory can not be allocated.");
52                break;
53            }
54            else
55            {
56                printf(" Input data for node %d : ", i);
57                scanf(" %d", &num);
58 
59                fnNode->num = num;      // links the num field of fnNode with num
60                fnNode->nextptr = NULL; // links the address field of fnNode with NULL
61 
62                tmp->nextptr = fnNode; // links previous node i.e. tmp to the fnNode
63                tmp = tmp->nextptr; 
64            }
65        }
66    }
67}
68void displayList()
69{
70    struct node *tmp;
71    if(stnode == NULL)
72    {
73        printf(" List is empty.");
74    }
75    else
76    {
77        tmp = stnode;
78        while(tmp != NULL)
79        {
80            printf(" Data = %d\n", tmp->num);       // prints the data of current node
81            tmp = tmp->nextptr;                     // advances the position of current node
82        }
83    }
84} 
85
86