smb/server: fix return value of smb2_query_dir()

__process_request() will not print error messages if smb2_query_dir()
always returns 0.

Fix this by returning the correct value at the end of function.

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/smb/server/smb2pdu.c

@@ -4550,7 +4550,7 @@ err_out2:
 	smb2_set_err_rsp(work);
 	ksmbd_fd_put(work, dir_fp);
 	ksmbd_revert_fsids(work);
-	return 0;
+	return rc;
 }
 
 /**