[PATCH 5/6] KVM: PPC: e500: Use kmalloc_array() in kvmppc_e500_tlb_init()
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STALE3683d
From: SF Markus Elfring <hidden>
Date: 2016-08-28 17:18:26
Also in:
kernel-janitors, kvm, lkml
Subsystem:
kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Markus Elfring <redacted> Date: Sun, 28 Aug 2016 18:40:08 +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". * 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 <redacted> --- arch/powerpc/kvm/e500_mmu.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index 2be2afc4..0a2eeb1 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c@@ -905,8 +905,6 @@ static int vcpu_mmu_init(struct kvm_vcpu *vcpu, int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500) { struct kvm_vcpu *vcpu = &vcpu_e500->vcpu; - int entry_size = sizeof(struct kvm_book3e_206_tlb_entry); - int entries = KVM_E500_TLB0_SIZE + KVM_E500_TLB1_SIZE; if (e500_mmu_host_init(vcpu_e500)) goto err;
@@ -921,7 +919,10 @@ int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500) vcpu_e500->gtlb_params[1].ways = KVM_E500_TLB1_SIZE; vcpu_e500->gtlb_params[1].sets = 1; - vcpu_e500->gtlb_arch = kmalloc(entries * entry_size, GFP_KERNEL); + vcpu_e500->gtlb_arch = kmalloc_array(KVM_E500_TLB0_SIZE + + KVM_E500_TLB1_SIZE, + sizeof(*vcpu_e500->gtlb_arch), + GFP_KERNEL); if (!vcpu_e500->gtlb_arch) return -ENOMEM;
--
2.9.3