Typo in I2C_STM32F4xx.c (I2C Driver for ST STM32F4xx)

case ARM_I2C_BUS_SPEED:
      pclk = HAL_RCC_GetPCLK1Freq();
      switch (arg) {
        case ARM_I2C_BUS_SPEED_STANDARD:
          /* Clock = 100kHz,  Rise Time = 1000ns */
          if (pclk > 50000000U) { return ARM_DRIVER_ERROR_UNSUPPORTED; }
          if (pclk <  2000000U) { return ARM_DRIVER_ERROR_UNSUPPORTED; }
          ccr   = (pclk /  100000U) / 2U;
          trise = (pclk / 1000000U) + 1U;
          break;
        case ARM_I2C_BUS_SPEED_FAST:
          /* Clock = 400kHz,  Rise Time = 300ns */
          if (pclk > 50000000U) { return ARM_DRIVER_ERROR_UNSUPPORTED; }
          if (pclk <  4000000U) { return ARM_DRIVER_ERROR_UNSUPPORTED; }
          if ((pclk >= 10000000U) && ((pclk % 10000000U) == 0U)) {
            ccr = I2C_CCR_FS | I2C_CCR_DUTY | ((pclk / 400000U) / 25U);
          } else {
            ccr = I2C_CCR_FS |                ((pclk / 400000U) / 3U);
          }
          trise = (pclk / 333333U) + 1U;
          break;
        default:
          return ARM_DRIVER_ERROR_UNSUPPORTED;
      }
      i2c->reg->CR1   &= ~I2C_CR1_PE;           /* Disable I2C peripheral */
      i2c->reg->CR2   &= ~I2C_CR2_FREQ;
      i2c->reg->CR2   |=  pclk / 1000000U;
      i2c->reg->CCR    =  ccr;
      i2c->reg->TRISE  =  trise;