7 calls to file_save_upload()

aggregator_form_opml_submit in drupal/modules/aggregator/aggregator.admin.inc
Form submission handler for aggregator_form_opml().
file_managed_file_save_upload in drupal/modules/file/file.module
Saves any files that have been uploaded into a managed_file element.
locale_translate_import_form_submit in drupal/modules/locale/locale.admin.inc
Process the locale import form submission.
system_theme_settings_validate in drupal/modules/system/system.admin.inc
Validator for the system_theme_settings() form.
update_manager_install_form_submit in drupal/modules/update/update.manager.inc
Form submission handler for update_manager_install_form().
user_validate_picture in drupal/modules/user/user.module
Validates an image uploaded by a user.
_file_test_form_submit in drupal/modules/simpletest/tests/file_test.module
Process the upload.