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@@ -98,40 +98,31 @@ static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle)
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return ret;
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}
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-/* Get device's handler per its address under its parent */
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-struct acpi_find_child {
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- acpi_handle handle;
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- u64 address;
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-};
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-
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-static acpi_status
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-do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv)
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+static acpi_status do_acpi_find_child(acpi_handle handle, u32 lvl_not_used,
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+ void *addr_p, void **ret_p)
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{
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+ unsigned long long addr;
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acpi_status status;
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- struct acpi_device_info *info;
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- struct acpi_find_child *find = context;
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-
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- status = acpi_get_object_info(handle, &info);
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- if (ACPI_SUCCESS(status)) {
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- if ((info->address == find->address)
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- && (info->valid & ACPI_VALID_ADR))
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- find->handle = handle;
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- kfree(info);
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+
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+ status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &addr);
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+ if (ACPI_SUCCESS(status) && addr == *((u64 *)addr_p)) {
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+ *ret_p = handle;
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+ return AE_CTRL_TERMINATE;
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}
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return AE_OK;
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}
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acpi_handle acpi_get_child(acpi_handle parent, u64 address)
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{
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- struct acpi_find_child find = { NULL, address };
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+ void *ret = NULL;
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if (!parent)
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return NULL;
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- acpi_walk_namespace(ACPI_TYPE_DEVICE, parent,
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- 1, do_acpi_find_child, NULL, &find, NULL);
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- return find.handle;
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-}
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+ acpi_walk_namespace(ACPI_TYPE_DEVICE, parent, 1, NULL,
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+ do_acpi_find_child, &address, &ret);
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+ return (acpi_handle)ret;
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+}
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EXPORT_SYMBOL(acpi_get_child);
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static int acpi_bind_one(struct device *dev, acpi_handle handle)
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