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Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e807bffc0804..fe0000eb7cae 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1070,10 +1070,30 @@ int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data)
}
EXPORT_SYMBOL_GPL(acpi_bus_for_each_dev);
+struct acpi_dev_walk_context {
+ int (*fn)(struct acpi_device *, void *);
+ void *data;
+};
+
+static int acpi_dev_for_one_check(struct device *dev, void *context)
+{
+ struct acpi_dev_walk_context *adwc = context;
+
+ if (dev->bus != &acpi_bus_type)
+ return 0;
+
+ return adwc->fn(to_acpi_device(dev), adwc->data);
+}
+
int acpi_dev_for_each_child(struct acpi_device *adev,
- int (*fn)(struct device *, void *), void *data)
+ int (*fn)(struct acpi_device *, void *), void *data)
{
- return device_for_each_child(&adev->dev, data, fn);
+ struct acpi_dev_walk_context adwc = {
+ .fn = fn,
+ .data = data,
+ };
+
+ return device_for_each_child(&adev->dev, &adwc, acpi_dev_for_one_check);
}
/* --------------------------------------------------------------------------