From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boaz Harrosh Subject: Re: [PATCH] scsi: lpfc: lpfc_init: use kcalloc for allocating memory Date: Tue, 08 Apr 2014 09:36:02 +0300 Message-ID: <534398D2.6010008@gmail.com> References: <1395175900-9659-1-git-send-email-eu@opreamatei.ro> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1395175900-9659-1-git-send-email-eu@opreamatei.ro> Sender: linux-kernel-owner@vger.kernel.org To: Matei Oprea , jbottomley@parallels.com Cc: james.smart@emulex.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, ROSEdu Kernel Community List-Id: linux-scsi@vger.kernel.org On 03/18/2014 10:51 PM, Matei Oprea wrote: > It's easier to use kcalloc for allocating arrays. While at it > also remove useless casting value. > > Signed-off-by: Matei Oprea > Cc: ROSEdu Kernel Community > --- > drivers/scsi/lpfc/lpfc_init.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c > index 68c94cc..0a51ca5 100644 > --- a/drivers/scsi/lpfc/lpfc_init.c > +++ b/drivers/scsi/lpfc/lpfc_init.c > @@ -4731,9 +4731,9 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) > } > > if (!phba->sli.ring) > - phba->sli.ring = (struct lpfc_sli_ring *) > - kzalloc(LPFC_SLI3_MAX_RING * > + phba->sli.ring = kcalloc(LPFC_SLI3_MAX_RING, > sizeof(struct lpfc_sli_ring), GFP_KERNEL); > + Just a nit please put this recheck inside the if(){} so in the hot path when phba->sli.ring is already allocated it will not test twice. > if (!phba->sli.ring) and unlikely() on this if > return -ENOMEM; > > thanks Boaz