From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.web.de (mout.web.de [212.227.15.3]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3sKJzm3XcCzDrcb for ; Thu, 25 Aug 2016 06:38:28 +1000 (AEST) To: linuxppc-dev@lists.ozlabs.org, Alexey Kardashevskiy , Alistair Popple , Benjamin Herrenschmidt , Gavin Shan , Ian Munsie , Michael Ellerman , Paul Mackerras , Wei Yang Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall , Paolo Bonzini From: SF Markus Elfring Subject: [PATCH] powerpc/powernv/pci: Use kmalloc_array() in two functions Message-ID: <817567b2-cdf6-7f7b-6041-9a026ea10a0f@users.sourceforge.net> Date: Wed, 24 Aug 2016 22:36:54 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Markus Elfring Date: Wed, 24 Aug 2016 22:26:37 +0200 A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus reuse the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- arch/powerpc/platforms/powernv/pci-ioda.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index fd9444f..2366552 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1305,7 +1305,9 @@ static int pnv_pci_vf_assign_m64(struct pci_dev *pdev, u16 num_vfs) else m64_bars = 1; - pdn->m64_map = kmalloc(sizeof(*pdn->m64_map) * m64_bars, GFP_KERNEL); + pdn->m64_map = kmalloc_array(m64_bars, + sizeof(*pdn->m64_map), + GFP_KERNEL); if (!pdn->m64_map) return -ENOMEM; /* Initialize the m64_map to IODA_INVALID_M64 */ @@ -1572,8 +1574,9 @@ int pnv_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs) /* Allocating pe_num_map */ if (pdn->m64_single_mode) - pdn->pe_num_map = kmalloc(sizeof(*pdn->pe_num_map) * num_vfs, - GFP_KERNEL); + pdn->pe_num_map = kmalloc_array(num_vfs, + sizeof(*pdn->pe_num_map), + GFP_KERNEL); else pdn->pe_num_map = kmalloc(sizeof(*pdn->pe_num_map), GFP_KERNEL); -- 2.9.3