Matrix Display (C)

#include <stdio.h>
#include <stdlib.h>

int display(float *, int, int);

int display(float *m, int rows, int cols) {
   int x,y = 0;
   for (x=0; x < rows; x++) {
      for (y=0; y < cols; y++) {
         printf("%f ", m[x*cols + y]);
      }
      printf("\n");
   }
}