From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753671AbbJOQ3V (ORCPT ); Thu, 15 Oct 2015 12:29:21 -0400 Received: from mail-yk0-f173.google.com ([209.85.160.173]:33843 "EHLO mail-yk0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752502AbbJOQ3U (ORCPT ); Thu, 15 Oct 2015 12:29:20 -0400 From: Insu Yun To: isdn@linux-pingi.de, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: taesoo@gatech.edu, yeongjin.jang@gatech.edu, insu@gatech.edu, Insu Yun Subject: [PATCH 1/2] isdn: correctly check failed allocation Date: Thu, 15 Oct 2015 12:29:27 -0400 Message-Id: <1444926568-29572-1-git-send-email-wuninsu@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since skb_clone can be failed in memory pressure, return value of skb_clone needs to be checked. Signed-off-by: Insu Yun --- drivers/isdn/hisax/isdnl2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/isdn/hisax/isdnl2.c b/drivers/isdn/hisax/isdnl2.c index 18accb0..e74f847 100644 --- a/drivers/isdn/hisax/isdnl2.c +++ b/drivers/isdn/hisax/isdnl2.c @@ -1284,6 +1284,10 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg) } l2->windowar[p1] = skb_clone(skb, GFP_ATOMIC); + if (!l2->windowar[p1]) { + return; + } + i = sethdraddr(&st->l2, header, CMD); if (test_bit(FLG_MOD128, &l2->flag)) { -- 1.9.1