rollback is_mount_point() changes

Author: digant73

Utilities/File.cpp

@@ -227,14 +227,9 @@ static bool is_optical_device_node(const struct ::stat& file_info)
 // Check whether the path is the root of a mounted filesystem (e.g. the mount point of a disc): "st_dev" changes when crossing a mount point
 [[maybe_unused]] static bool is_mount_point(const std::string& path, const struct ::stat& file_info)
 {
-	// A file is never a mount point: discard it without any syscall (the "stat()" below would fail with ENOTDIR anyway)
-	if (!S_ISDIR(file_info.st_mode))
-	{
-		return false;
-	}
-
 	struct ::stat parent_info;
 
+	// NOTE: it also fails (ENOTDIR) if the path is a file, which is never a mount point
 	if (::stat((path + "/..").c_str(), &parent_info) != 0)
 	{
 		return false;