Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932603AbdDEOXy (ORCPT ); Wed, 5 Apr 2017 10:23:54 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:16878 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754914AbdDEOWM (ORCPT ); Wed, 5 Apr 2017 10:22:12 -0400 Date: Wed, 5 Apr 2017 17:21:47 +0300 From: Yuval Shaia To: SF Markus Elfring Cc: linux-rdma@vger.kernel.org, Doug Ledford , Hal Rosenstock , Mike Marciniszyn , Sean Hefty , LKML , kernel-janitors@vger.kernel.org Subject: Re: [PATCH 2/5] IB/qib: Use kmalloc_array() in qib_init_7322_variables() Message-ID: <20170405142146.GA5006@yuval-lap> References: <894a5d6c-882c-0bd9-f3ec-80fc8b7c355c@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <894a5d6c-882c-0bd9-f3ec-80fc8b7c355c@users.sourceforge.net> User-Agent: Mutt/1.5.24 (2015-08-30) X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2079 Lines: 51 On Wed, Apr 05, 2017 at 03:52:48PM +0200, SF Markus Elfring wrote: > From: Markus Elfring > Date: Wed, 5 Apr 2017 09:51:33 +0200 > > Multiplications for the size determination of memory allocations > indicated that array data structures should be processed. > Thus use the corresponding function "kmalloc_array". > > This issue was detected by using the Coccinelle software. > > Signed-off-by: Markus Elfring > --- > drivers/infiniband/hw/qib/qib_iba7322.c | 15 +++++++++------ > 1 file changed, 9 insertions(+), 6 deletions(-) > > diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c > index e4e4e675c89c..490f432809b8 100644 > --- a/drivers/infiniband/hw/qib/qib_iba7322.c > +++ b/drivers/infiniband/hw/qib/qib_iba7322.c > @@ -6442,12 +6442,15 @@ static int qib_init_7322_variables(struct qib_devdata *dd) > sbufcnt = dd->piobcnt2k + dd->piobcnt4k + > NUM_VL15_BUFS + BITS_PER_LONG - 1; > sbufcnt /= BITS_PER_LONG; > - dd->cspec->sendchkenable = kmalloc(sbufcnt * > - sizeof(*dd->cspec->sendchkenable), GFP_KERNEL); > - dd->cspec->sendgrhchk = kmalloc(sbufcnt * > - sizeof(*dd->cspec->sendgrhchk), GFP_KERNEL); > - dd->cspec->sendibchk = kmalloc(sbufcnt * > - sizeof(*dd->cspec->sendibchk), GFP_KERNEL); > + dd->cspec->sendchkenable = kmalloc_array(sbufcnt, > + sizeof(*dd->cspec->sendchkenable), > + GFP_KERNEL); > + dd->cspec->sendgrhchk = kmalloc_array(sbufcnt, > + sizeof(*dd->cspec->sendgrhchk), > + GFP_KERNEL); > + dd->cspec->sendibchk = kmalloc_array(sbufcnt, > + sizeof(*dd->cspec->sendibchk), > + GFP_KERNEL); > if (!dd->cspec->sendchkenable || !dd->cspec->sendgrhchk || > !dd->cspec->sendibchk) { > ret = -ENOMEM; Reviewed-by: Yuval Shaia > -- > 2.12.2 > > -- > 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