Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756479AbaBFMXg (ORCPT ); Thu, 6 Feb 2014 07:23:36 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44400 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756220AbaBFMXf (ORCPT ); Thu, 6 Feb 2014 07:23:35 -0500 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Kent Overstreet , Peter Zijlstra , Jens Axboe , "Nicholas A. Bellinger" Subject: [PATCH RESEND 3/3] percpu_ida: Sanity check initialization parameters Date: Thu, 6 Feb 2014 13:24:55 +0100 Message-Id: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Alexander Gordeev Cc: Kent Overstreet Cc: Peter Zijlstra Cc: Jens Axboe Cc: "Nicholas A. Bellinger" --- lib/percpu_ida.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c index c2fa3dc..81b5ae9 100644 --- a/lib/percpu_ida.c +++ b/lib/percpu_ida.c @@ -305,6 +305,11 @@ int __percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags, { unsigned i, cpu, order; + if (batch_size > max_size) + return -ERANGE; + if (!batch_size) + return -EINVAL; + memset(pool, 0, sizeof(*pool)); init_waitqueue_head(&pool->wait); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/