Messages in this thread Patch in this message | | | Subject | [PATCH 4/5] ia64/mm/tlb: Use kmalloc_array() in ia64_itr_entry() | From | SF Markus Elfring <> | Date | Fri, 26 Aug 2016 20:05:53 +0200 |
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From: Markus Elfring <elfring@users.sourceforge.net> 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 <elfring@users.sourceforge.net> --- 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
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