C中的指针 - 构造矩阵时的"分割错误"

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

int main() {
    int **matrix;
    int row1 = 2, row2 = 2, col1 = 2, col2 = 2;

    matrix = calloc(row1, sizeof(int *));
    if (matrix == NULL) {
        printf("Memory allocation failed\n");
        return 1;
    }

    for (int i = 0; i < row1; i++) {
        matrix[i] = calloc(col1, sizeof(int));
        if (matrix[i] == NULL) {
            printf("Memory allocation failed\n");
            return 1;
        }
    }

    // 在此处进行矩阵操作

    free(matrix);
    return 0;
}