exif_read_data(): Argument #1 ($file) cannot be empty

I had also faced the same issue, but applying patch #2 resolved my issue

Can confirm patch #2 fixes the PHP 8.1 error

The patches fixes the error for me as well.

However, false should be in all caps, FALSE, to conform to Drupal's coding standards.

Here's a Drupal 7 patch that also includes the patch for #3263166: Allow other mime types.

The section they patch are the same, so there are patch conflicts without manual adjustments. This should make that easier.

Here's a patch for Drupal 8+ that fixes both this issue and #3263166: Allow other mime types. (Again because of patch conflicts.)

I also used short array syntax.

This looks great back to RTBC

The patches all replaced @exif_read_data with exif_read_data. I now get warnings when using a PNG file (#3263166: Allow other mime types).

@exif_read_data should be used.

Warning: exif_read_data(future-8-4-23.png): File not supported in _exif_orientation_rotate() (line 68 of /var/www/html/web/modules/contrib/exif_orientation/exif_orientation.module)
#0 /var/www/html/web/core/includes/bootstrap.inc(347): _drupal_error_handler_real()
#1 [internal function]: _drupal_error_handler()
#2 /var/www/html/web/modules/contrib/exif_orientation/exif_orientation.module(68): exif_read_data()
#3 /var/www/html/web/modules/contrib/exif_orientation/exif_orientation.module(17): _exif_orientation_rotate()
#4 [internal function]: exif_orientation_file_presave()

Drupal 8+ patch, same as before except I added @

That's fair though strange we explicitly check for png mime type, does it sometimes work?

It works, but it just shows a warning.

Errors of level E_WARNING and/or E_NOTICE may be raised for unsupported tags or other potential error conditions, but the function still tries to read all comprehensible information.

https://www.php.net/manual/en/function.exif-read-data.php