I’m coding in C and it seems like the program ignores the scanf command and starts doing an infinite cycle if I insert anything other than a number. Does anyone know how to fix it or even what is going on?

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#define NBITS 8

void inserimento(){

  int N, ret;

  do {
    printf("Immetti un numero maggiore di 1n");
    ret = scanf("%d", &N);
  }
  while(ret==0 || N <= 1);
  
}

int main(){

  int N;
  inserimento();
  
}

I’ve tried switching the order of the or statement and using the solution from the code my professor gave us but I’m pretty new to this so I don’t know if I messed up in copying it.