From: Markus Elfring Date: Sun, 28 Aug 2016 14:30:07 +0000 (+0200) Subject: KVM: PPC: e500: Use kmalloc_array() in kvm_vcpu_ioctl_config_tlb() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f3c0ce86a8da6a43c3551a2223abd42040316dd8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git KVM: PPC: e500: Use kmalloc_array() in kvm_vcpu_ioctl_config_tlb() * 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 Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c index 29911a07bcdb..26f373710a25 100644 --- a/arch/powerpc/kvm/e500_mmu.c +++ b/arch/powerpc/kvm/e500_mmu.c @@ -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) - cfg->array / PAGE_SIZE; - pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL); + pages = kmalloc_array(num_pages, sizeof(*pages), GFP_KERNEL); if (!pages) return -ENOMEM;