o = obj->package.elements; if (o->type != ACPI_TYPE_INTEGER) {
pr_info("Bad 1st element type %d\n", o->type); goto err;
} if (o->integer.value) {
pr_info("Bad ret val %llu\n", o->integer.value); goto err;
}
o = obj->package.elements + 1; if (o->type != ACPI_TYPE_PACKAGE) {
pr_info("Bad 2nd element type %d\n", o->type); goto err;
} return obj;
results = adxl_dsm(ADXL_IDX_FORWARD_TRANSLATE, argv4); if (!results) return -EINVAL;
r = results->package.elements + 1;
cnt = r->package.count; if (cnt != adxl_count) {
ACPI_FREE(results); return -EINVAL;
}
r = r->package.elements;
for (i = 0; i < cnt; i++)
component_values[i] = r[i].integer.value;
ACPI_FREE(results);
return0;
}
EXPORT_SYMBOL_GPL(adxl_decode);
staticint __init adxl_init(void)
{ char *path = ACPI_ADXL_PATH; union acpi_object *p;
acpi_status status; int i;
status = acpi_get_handle(NULL, path, &handle); if (ACPI_FAILURE(status)) {
pr_debug("No ACPI handle for path %s\n", path); return -ENODEV;
}
if (!acpi_has_method(handle, "_DSM")) {
pr_info("No DSM method\n"); return -ENODEV;
}
if (!acpi_check_dsm(handle, &adxl_guid, ADXL_REVISION,
ADXL_IDX_GET_ADDR_PARAMS |
ADXL_IDX_FORWARD_TRANSLATE)) {
pr_info("DSM method does not support forward translate\n"); return -ENODEV;
}
params = adxl_dsm(ADXL_IDX_GET_ADDR_PARAMS, NULL); if (!params) {
pr_info("Failed to get component names\n"); return -ENODEV;
}
p = params->package.elements + 1;
adxl_count = p->package.count; if (adxl_count > ADXL_MAX_COMPONENTS) {
pr_info("Insane number of address component names %d\n", adxl_count);
ACPI_FREE(params); return -ENODEV;
}
p = p->package.elements;
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