fix regression for v3.1.3

Author: korelstar

lib/Service/NoteUtil.php

@@ -223,8 +223,7 @@ public function deleteEmptyFolder(Folder $notesFolder, Folder $folder) {
 	 * @param File file that needs storage
 	 * @throws InsufficientStorageException
 	 */
-	public function ensureSufficientStorage(File $file, $requiredBytes) : void {
-		$folder = $file->getParent();
+	public function ensureSufficientStorage(Folder $folder, $requiredBytes) : void {
 		$availableBytes = $folder->getFreeSpace();
 		if ($availableBytes >= 0 && $availableBytes < $requiredBytes) {
 			$this->logger->error('Insufficient storage in '.$folder->getPath().': available are '.$availableBytes.'; required are '.$requiredBytes, ['app' => $this->appName]);

lib/Service/NotesService.php

@@ -126,7 +126,7 @@ private function getNote(File $file, Folder $notesFolder, $tags = [], $onlyMeta
 	public function create($userId) : Note {
 		$title = $this->l10n->t('New note');
 		$folder = $this->getFolderForUser($userId);
-		$this->noteUtil->ensureSufficientStorage($file, 1);
+		$this->noteUtil->ensureSufficientStorage($folder, 1);
 
 		// check new note exists already and we need to number it
 		// pass -1 because no file has id -1 and that will ensure
@@ -181,7 +181,7 @@ public function update($id, $content, $userId, $category = null, $mtime = 0) : N
 		}
 
 		if ($content !== null) {
-			$this->noteUtil->ensureSufficientStorage($file, strlen($content));
+			$this->noteUtil->ensureSufficientStorage($file->getParent(), strlen($content));
 			$file->putContent($content);
 		}