Merge pull request #20494 from nextcloud/backport/20361/stable17

[stable17] Close the streams in `writeStream` even when there is an exception

Author: rullzer

lib/private/Files/Storage/Common.php

@@ -853,9 +853,12 @@ public function writeStream(string $path, $stream, int $size = null): int {
 		if (!$target) {
 			return 0;
 		}
-		list($count, $result) = \OC_Helper::streamCopy($stream, $target);
-		fclose($stream);
-		fclose($target);
+		try {
+			[$count, $result] = \OC_Helper::streamCopy($stream, $target);
+		} finally {
+			fclose($target);
+			fclose($stream);
+		}
 		return $count;
 	}
 }