cifsd: fix error return code in ksmbd_vfs_remove_file()

Change -ENOENT error to -EINVAL to response STATUS_INVALID_PARAMETER.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifsd/vfs.c

@@ -596,7 +596,7 @@ int ksmbd_vfs_remove_file(struct ksmbd_work *work, char *name)
 
 	last = extract_last_component(name);
 	if (!last)
-		return -ENOENT;
+		return -EINVAL;
 
 	if (ksmbd_override_fsids(work))
 		return -ENOMEM;