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KVM: PPC: e500: Use kmalloc_array() in kvm_vcpu_ioctl_config_tlb()

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* 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 type 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>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Markus Elfring 2016-08-28 16:30:07 +02:00 committed by Paul Mackerras
parent 65e7026a6c
commit f3c0ce86a8
1 changed files with 1 additions and 1 deletions
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arch/powerpc/kvm/e500_mmu.c
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@ -779,7 +779,7 @@ int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
num_pages = DIV_ROUND_UP(cfg->array + array_len - 1, PAGE_SIZE) - num_pages = DIV_ROUND_UP(cfg->array + array_len - 1, PAGE_SIZE) -
cfg->array / PAGE_SIZE; cfg->array / PAGE_SIZE;
pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL); pages = kmalloc_array(num_pages, sizeof(*pages), GFP_KERNEL);
if (!pages) if (!pages)
return -ENOMEM; return -ENOMEM;