SDFS.info64 doesn't return the correct SD card capacity

[BrokeStudio]

Basic Infos

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have searched the issue tracker for a similar issue.
• I have filled out all fields below.

Platform

• Hardware: ESP-12
• Core Version: 3.1.2
• Development Env: Platformio
• Operating System: Windows

Settings in IDE

• Module: Generic ESP8266 Module
• Flash Mode: qio
• Flash Size: 4MB
• lwip Variant: not relevant
• Reset Method: nodemcu
• Flash Frequency: 40Mhz
• CPU Frequency: 80Mhz
• Upload Using: SERIAL
• Upload Speed: 921600

Problem Description

Using SDFS.info64() with a 32GB SD card doesn't return the SD card capacity.

I modified SDFS.h file, function bool info64(fs::FSInfo64& info) from this:

info.totalBytes =_fs.vol()->clusterCount() * info.blockSize;
info.usedBytes = (_fs.vol()->clusterCount() - _fs.vol()->freeClusterCount()) * info.blockSize;

to this:

info.totalBytes = (uint64_t)_fs.vol()->clusterCount() * (uint64_t)info.blockSize;
info.usedBytes = (uint64_t)(_fs.vol()->clusterCount() - _fs.vol()->freeClusterCount()) * (uint64_t)info.blockSize;

and it fixed the issue.
However, I'm not sure if it's the best fix.

MCVE Sketch

#include <Arduino.h>
#include <LittleFS.h>
#include <SD.h>

void setup()
{
  Serial.begin(115200);

  if (!SDFS.begin())
  {
    Serial.println("Initialization failed!");
  }
  else
  {
    Serial.println("Initialization successful!");
    FSInfo64 sd_info;
    SDFS.info64(sd_info);
    Serial.print("Total space: ");
    Serial.printf("%02llX", (sd_info.totalBytes >> 56) & 0xff);
    Serial.printf("%02llX", (sd_info.totalBytes >> 48) & 0xff);
    Serial.printf("%02llX", (sd_info.totalBytes >> 40) & 0xff);
    Serial.printf("%02llX", (sd_info.totalBytes >> 32) & 0xff);
    Serial.printf("%02llX", (sd_info.totalBytes >> 24) & 0xff);
    Serial.printf("%02llX", (sd_info.totalBytes >> 16) & 0xff);
    Serial.printf("%02llX", (sd_info.totalBytes >> 8) & 0xff);
    Serial.printf("%02llX", sd_info.totalBytes & 0xff);
    Serial.println();
  }
}

void loop()
{
}

Debug Messages

Code above outputs this:

Initialization successful!
Total space: 000000006D880000

Once function info64 in file SDFS.h, it outputs this (which is the correct value):

Initialization successful!
Total space: 000000076D880000

[BrokeStudio]

Seems to be related to issue #8445.