宣告記憶體的使用方法

/* Buffer to store data */
char *memory_buffer;
int memory_init(void) {
 /* Allocating memory for the buffer */
  memory_buffer = kmalloc(1, GFP_KERNEL);
  if (!memory_buffer) 
    result = -ENOMEM;
  }else{
 result = 0;
}
return result;
}