void __init acpi_hest_init(void)
{
acpi_status status;
int rc = -ENODEV;
unsigned int ghes_count = 0;
if (hest_disable) {
pr_info(HEST_PFX "Table parsing disabled.\n");
return;
}
status = acpi_get_table(ACPI_SIG_HEST, 0,
(struct acpi_table_header **)&hest_tab);
if (status == AE_NOT_FOUND) {
hest_disable = HEST_NOT_FOUND;
return;
} else if (ACPI_FAILURE(status)) {
const char *msg = acpi_format_exception(status);
pr_err(HEST_PFX "Failed to get table, %s\n", msg);
rc = -EINVAL;
goto err;
}
rc = apei_hest_parse(hest_parse_cmc, NULL);
if (rc)
goto err;
if (!ghes_disable) {
rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count);
if (rc)
goto err;
rc = hest_ghes_dev_register(ghes_count);
if (rc)
goto err;
}
pr_info(HEST_PFX "Table parsing has been initialized.\n");
return;
err:
hest_disable = HEST_DISABLED;
}
static int __init hest_init(void)
{
acpi_status status;
int rc = -ENODEV;
unsigned int ghes_count = 0;
if (acpi_disabled)
goto err;
if (hest_disable) {
pr_info(HEST_PFX "HEST tabling parsing is disabled.\n");
goto err;
}
status = acpi_get_table(ACPI_SIG_HEST, 0,
(struct acpi_table_header **)&hest_tab);
if (status == AE_NOT_FOUND) {
pr_info(HEST_PFX "Table is not found!\n");
goto err;
} else if (ACPI_FAILURE(status)) {
const char *msg = acpi_format_exception(status);
pr_err(HEST_PFX "Failed to get table, %s\n", msg);
rc = -EINVAL;
goto err;
}
rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count);
if (rc)
goto err;
rc = hest_ghes_dev_register(ghes_count);
if (rc)
goto err;
pr_info(HEST_PFX "HEST table parsing is initialized.\n");
return 0;
err:
hest_disable = 1;
return rc;
}
static int __init hest_ghes_dev_register(unsigned int ghes_count)
{
int rc, i;
struct ghes_arr ghes_arr;
ghes_arr.count = 0;
ghes_arr.ghes_devs = kmalloc(sizeof(void *) * ghes_count, GFP_KERNEL);
if (!ghes_arr.ghes_devs)
return -ENOMEM;
rc = apei_hest_parse(hest_parse_ghes, &ghes_arr);
if (rc)
goto err;
out:
kfree(ghes_arr.ghes_devs);
return rc;
err:
for (i = 0; i < ghes_arr.count; i++)
platform_device_unregister(ghes_arr.ghes_devs[i]);
goto out;
}