static struct ghes *ghes_new(struct acpi_hest_generic *generic)
{
	struct ghes *ghes;
	unsigned int error_block_length;
	int rc;

	ghes = kzalloc(sizeof(*ghes), GFP_KERNEL);
	if (!ghes)
		return ERR_PTR(-ENOMEM);
	ghes->generic = generic;
	rc = apei_map_generic_address(&generic->error_status_address);
	if (rc)
		goto err_free;
	error_block_length = generic->error_block_length;
	if (error_block_length > GHES_ESTATUS_MAX_SIZE) {
		pr_warning(FW_WARN GHES_PFX
			   "Error status block length is too long: %u for "
			   "generic hardware error source: %d.\n",
			   error_block_length, generic->header.source_id);
		error_block_length = GHES_ESTATUS_MAX_SIZE;
	}
	ghes->estatus = kmalloc(error_block_length, GFP_KERNEL);
	if (!ghes->estatus) {
		rc = -ENOMEM;
		goto err_unmap;
	}

	return ghes;

err_unmap:
	apei_unmap_generic_address(&generic->error_status_address);
err_free:
	kfree(ghes);
	return ERR_PTR(rc);
}
Exemple #2
0
static int post_unmap_gar_callback(struct apei_exec_context *ctx,
				   struct acpi_whea_header *entry,
				   void *data)
{
	u8 ins = entry->instruction;

	if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER)
		apei_unmap_generic_address(&entry->register_region);

	return 0;
}
static void ghes_fini(struct ghes *ghes)
{
	kfree(ghes->estatus);
	apei_unmap_generic_address(&ghes->generic->error_status_address);
}