问分割故障初始化SDL2。我的记忆有什么问题？

EN

#include <SDL2/SDL.h>
#include <stdio.h>
#include <stdbool.h>
#define SCREENWIDTH 640
#define SCREENHEIGHT 480
SDL_Window *win = NULL;
SDL_Surface *scrn = NULL;
SDL_Surface *mscrn = NULL;
bool init()
{
   bool suc = true;
   char name[11] = "Hello SDL";
   if (SDL_Init(SDL_INIT_VIDEO) != 0) {
    printf("%s", SDL_GetError());
    suc = false;
   } 
  win = SDL_CreateWindow(name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREENWIDTH, SCREENHEIGHT, SDL_WINDOW_SHOWN);
  if (win == NULL) {
    printf("%s", SDL_GetError());
    suc = false;
  }
scrn = SDL_GetWindowSurface(win);

return suc;
}   
bool loadmedia()
 {
   bool suc = true;
   mscrn = SDL_LoadBMP("hello_world.bmp");
   if (mscrn == NULL) {
   printf("%s", SDL_GetError());
   suc = false;
  }
   return suc;
} 
void close()
{
  SDL_FreeSurface(mscrn);
   SDL_DestroyWindow(win);
   SDL_Quit();
}
int main(int argc, char* args[])
{
 if (!init()) {
   close();
   return 1;
  } 
  if (!loadmedia()) {
   close();
   return 1;
  } 
   SDL_BlitSurface(mscrn, NULL, scrn, NULL);
   SDL_UpdateWindowSurface(win);
   SDL_Delay(3000);

   close();
   return 0;
}