From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Fri, 26 Aug 2016 18:05:53 +0000 Subject: [PATCH 4/5] ia64/mm/tlb: Use kmalloc_array() in ia64_itr_entry() Message-Id: List-Id: References: <349bbfb4-bada-628e-2981-ca2a315299fc@users.sourceforge.net> In-Reply-To: <349bbfb4-bada-628e-2981-ca2a315299fc@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org, Fenghua Yu , Tony Luck Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall , Paolo Bonzini From: Markus Elfring Date: Fri, 26 Aug 2016 19:43:34 +0200 * A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. * Replace the specification of a data structure by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring --- arch/ia64/mm/tlb.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c index 6d2f83d..30870d1 100644 --- a/arch/ia64/mm/tlb.c +++ b/arch/ia64/mm/tlb.c @@ -429,8 +429,9 @@ int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size) int cpu = smp_processor_id(); if (!ia64_idtrs[cpu]) { - ia64_idtrs[cpu] = kmalloc(2 * IA64_TR_ALLOC_MAX * - sizeof (struct ia64_tr_entry), GFP_KERNEL); + ia64_idtrs[cpu] = kmalloc_array(2 * IA64_TR_ALLOC_MAX, + sizeof(*ia64_idtrs[cpu]), + GFP_KERNEL); if (!ia64_idtrs[cpu]) return -ENOMEM; } -- 2.9.3