Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932365AbaFPRJE (ORCPT ); Mon, 16 Jun 2014 13:09:04 -0400 Received: from linode.aoot.com ([69.164.194.13]:42100 "EHLO linode.aoot.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932309AbaFPRJC (ORCPT ); Mon, 16 Jun 2014 13:09:02 -0400 Message-ID: <539F24AA.1020406@opengridcomputing.com> Date: Mon, 16 Jun 2014 12:08:58 -0500 From: Steve Wise User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Nicholas Krause , swise@chelsio.com CC: roland@kernel.org, sean.hefty@intel.com, hal.rosenstock@gmail.com, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [Patch Resend] infiniband:memory leak in get_skb function in file cm.c References: <1402938381-5882-1-git-send-email-xerofoify@gmail.com> In-Reply-To: <1402938381-5882-1-git-send-email-xerofoify@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/16/2014 12:06 PM, Nicholas Krause wrote: > diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c > index f9477e2..2d56983 100644 > --- a/drivers/infiniband/hw/cxgb4/cm.c > +++ b/drivers/infiniband/hw/cxgb4/cm.c > @@ -340,15 +340,13 @@ static int status2errno(int status) > */ > static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp) > { > if (skb && !skb_is_nonlinear(skb) && !skb_cloned(skb)) { > skb_trim(skb, 0); > skb_get(skb); > skb_reset_transport_header(skb); > } else { > +if (!skb) > + skb_kfree(skb); > + /*NULL is ignored */ > skb = alloc_skb(len, gfp); This is still incorrect and the formatting is screwy. As we discussed, you can call skb_kfree() with a NULL skb and it will silently ignore it. So you don't need th 'if (!skb)'... Perhaps you should read up more on submitting patches to get the formatting correct, and how to use the various tools, etc. steve. > } > t4_set_arp_err_handler(skb, NULL, NULL); > > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- 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/