Exit early if $storage is falsy in View::getDirectoryContent

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

lib/private/Files/View.php

@@ -1436,15 +1436,16 @@ class View {
 		if (!Filesystem::isValidPath($directory)) {
 			return [];
 		}
+
 		$path = $this->getAbsolutePath($directory);
 		$path = Filesystem::normalizePath($path);
 		$mount = $this->getMount($directory);
-		if (!$mount) {
-			return [];
-		}
 		$storage = $mount->getStorage();
 		$internalPath = $mount->getInternalPath($path);
-		if ($storage) {
+		if (!$storage) {
+			return [];
+		}
+
 		$cache = $storage->getCache($internalPath);
 		$user = \OC_User::getUser();
 
@@ -1551,9 +1552,6 @@ class View {
 		}
 
 		return array_values($files);
-		} else {
-			return [];
-		}
 	}
 
 	/**