Electronic – STM32F4 HAL Library Button Interrupt

I'm trying to toggle built in LED with external interrupt instead of while loop. Probably I'm doing something wrong with EXTI functions. Can you help me to fix it?

Here is my code:

#include "stm32f4xx.h"
#include "stm32f4xx_hal.h"


void SystemClock_Config(void);

void HAL_GPIO_EXTI_Callback (uint16_t GPIO_Pin)
{
    if (GPIO_Pin == GPIO_PIN_0) 
    {
HAL_NVIC_DisableIRQ(EXTI0_IRQn);
    HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_12);
HAL_Delay(100);
    HAL_NVIC_EnableIRQ(EXTI0_IRQn);
  }
}

void EXTI0_IRQHandler(void)
{
  HAL_NVIC_ClearPendingIRQ(EXTI0_IRQn);
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
  {
  /* EXTI line interrupt detected */
  if(__HAL_GPIO_EXTI_GET_IT(GPIO_PIN_0) != RESET)
  {
    __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN_0);
    HAL_GPIO_EXTI_Callback(GPIO_PIN_0);
  }
}
}





void SysTick_Handler(void)
{
    HAL_IncTick();
}



int main(void)
{
  /* Reset of all peripherals, Initializes the Flash interface and the 
Systick. */
  HAL_Init();


  /* Configure the system clock */
  SystemClock_Config();
  /* Initialize all configured peripherals */
        __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();

GPIO_InitTypeDef GPIO_InitLED;
GPIO_InitLED.Pin = GPIO_PIN_12;
GPIO_InitLED.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitLED.Pull = GPIO_NOPULL;
GPIO_InitLED.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOD, &GPIO_InitLED);

GPIO_InitTypeDef GPIO_InitButton;
GPIO_InitButton.Pin = GPIO_PIN_0;
GPIO_InitButton.Mode = GPIO_MODE_IT_RISING;
GPIO_InitButton.Pull = GPIO_PULLUP;
GPIO_InitButton.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitButton);


HAL_NVIC_SetPriority(EXTI0_IRQn, 3, 0);
    HAL_NVIC_EnableIRQ(EXTI0_IRQn);

HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); 

}





static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 25;
RCC_OscInitStruct.PLL.PLLN = 336;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 
clocks
dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK |
RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5); }