c program Warning the control reaches the end of non-void function

so this is a simple c programming using recursion which returns the power of the input value, but for some reason it showing error

#include <iostream>
//int sum = 1;

int powerOfNumber(int n, int p) {
    if (n != 0) {
        p--; 
        return powerOfNumber(n , p) * n;
    }
    if (n == 0) {
        return 1;
    }
}


int main()
{
    std::cout <<powerOfNumber(5, 2);
   

    return 0;
    
}

>Solution :

#include <iostream>

using namespace std; 

int powerOfNumber(int n, int p) {
    if(p==0)
        return 1;
    else 
        return (n*powerOfNumber(n,p-1));     
}


int main()
{
    std::cout <<powerOfNumber(5, 2);

    return 0;
}

Your powerOfNumber function never terminates because n is always 5.