efi: mokvar-table: fix some issues in new code

void __init efi_mokvar_table_init(void)

{

	efi_memory_desc_t md;

	u64 end_pa;

	void *va = NULL;

	size_t cur_offset = 0;

	size_t offset_limit;

	size_t map_size = 0;

	size_t map_size_needed = 0;

	size_t size;

	unsigned long cur_offset = 0;

	unsigned long offset_limit;

	unsigned long map_size = 0;

	unsigned long map_size_needed = 0;

	unsigned long size;

	struct efi_mokvar_table_entry *mokvar_entry;

	int err = -EINVAL;

	int err;

	if (!efi_enabled(EFI_MEMMAP))

		return;

		pr_warn("EFI MOKvar config table is not within the EFI memory map\n");

		return;

	}

	end_pa = efi_mem_desc_end(&md);

	if (efi.mokvar_table >= end_pa) {

		pr_err("EFI memory descriptor containing MOKvar config table is invalid\n");

		return;

	}

	offset_limit = end_pa - efi.mokvar_table;

	offset_limit = efi_mem_desc_end(&md) - efi.mokvar_table;

	/*

	 * Validate the MOK config table. Since there is no table header

	 * from which we could get the total size of the MOK config table,

	 * we compute the total size as we validate each variably sized

	 * entry, remapping as necessary.

	 */

	err = -EINVAL;

	while (cur_offset + sizeof(*mokvar_entry) <= offset_limit) {

		mokvar_entry = va + cur_offset;

		map_size_needed = cur_offset + sizeof(*mokvar_entry);

				       offset_limit);

			va = early_memremap(efi.mokvar_table, map_size);

			if (!va) {

				pr_err("Failed to map EFI MOKvar config table pa=0x%lx, size=%zu.\n",

				pr_err("Failed to map EFI MOKvar config table pa=0x%lx, size=%lu.\n",

				       efi.mokvar_table, map_size);

				return;

			}