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OpenCloudOS-Kernel
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KVM: PPC: e500: Replace kzalloc() calls by kcalloc() in two functions 

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kcalloc".

  Suggested-by: Paolo Bonzini <pbonzini@redhat.com>

  This issue was detected also by using the Coccinelle software.

* Replace the specification of data structures by pointer dereferences
  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 18:30:38 +02:00 committed by Paul Mackerras
parent cfb60813fb
commit b0ac477bc4
1 changed files with 11 additions and 12 deletions
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23
arch/powerpc/kvm/e500_mmu.c
View File

@ -799,22 +799,21 @@ int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
goto put_pages;
}
privs[0] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[0],
GFP_KERNEL);
privs[0] = kcalloc(params.tlb_sizes[0], sizeof(*privs[0]), GFP_KERNEL);
if (!privs[0]) {
ret = -ENOMEM;
goto put_pages;
}
privs[1] = kzalloc(sizeof(struct tlbe_priv) * params.tlb_sizes[1],
GFP_KERNEL);
privs[1] = kcalloc(params.tlb_sizes[1], sizeof(*privs[1]), GFP_KERNEL);
if (!privs[1]) {
ret = -ENOMEM;
goto free_privs_first;
}
g2h_bitmap = kzalloc(sizeof(u64) * params.tlb_sizes[1],
GFP_KERNEL);
g2h_bitmap = kcalloc(params.tlb_sizes[1],
sizeof(*g2h_bitmap),
GFP_KERNEL);
if (!g2h_bitmap) {
ret = -ENOMEM;
goto free_privs_second;
@ -929,20 +928,20 @@ int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
vcpu_e500->gtlb_offset[0] = 0;
vcpu_e500->gtlb_offset[1] = KVM_E500_TLB0_SIZE;
vcpu_e500->gtlb_priv[0] = kzalloc(sizeof(struct tlbe_ref) *
vcpu_e500->gtlb_params[0].entries,
vcpu_e500->gtlb_priv[0] = kcalloc(vcpu_e500->gtlb_params[0].entries,
sizeof(struct tlbe_ref),
GFP_KERNEL);
if (!vcpu_e500->gtlb_priv[0])
goto err;
vcpu_e500->gtlb_priv[1] = kzalloc(sizeof(struct tlbe_ref) *
vcpu_e500->gtlb_params[1].entries,
vcpu_e500->gtlb_priv[1] = kcalloc(vcpu_e500->gtlb_params[1].entries,
sizeof(struct tlbe_ref),
GFP_KERNEL);
if (!vcpu_e500->gtlb_priv[1])
goto err;
vcpu_e500->g2h_tlb1_map = kzalloc(sizeof(u64) *
vcpu_e500->gtlb_params[1].entries,
vcpu_e500->g2h_tlb1_map = kcalloc(vcpu_e500->gtlb_params[1].entries,
sizeof(*vcpu_e500->g2h_tlb1_map),
GFP_KERNEL);
if (!vcpu_e500->g2h_tlb1_map)
goto err;