kvm: svm: fix potential get_num_contig_pages overflow

	return ret;

}

static int get_num_contig_pages(int idx, struct page **inpages,

				unsigned long npages)

static unsigned long get_num_contig_pages(unsigned long idx,

				struct page **inpages, unsigned long npages)

{

	unsigned long paddr, next_paddr;

	int i = idx + 1, pages = 1;

	unsigned long i = idx + 1, pages = 1;

	/* find the number of contiguous pages starting from idx */

	paddr = __sme_page_pa(inpages[idx]);

static int sev_launch_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp)

{

	unsigned long vaddr, vaddr_end, next_vaddr, npages, size;

	unsigned long vaddr, vaddr_end, next_vaddr, npages, pages, size, i;

	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;

	struct kvm_sev_launch_update_data params;

	struct sev_data_launch_update_data *data;

	struct page **inpages;

	int i, ret, pages;

	int ret;

	if (!sev_guest(kvm))

		return -ENOTTY;