device_for_each_child (9)

int device_for_each_child(struct device * parent, void * data, int (*fn) (struct device *dev, void *data));

parent

parent struct device.

data

data for the callback.

fn

function to be called for each device.

Iterate over parent's child devices, and call fn for each, passing it data.

We check the return of fn each time. If it returns anything other than 0, we break out and return that value.