suse man page for i2c_verify_client

I2C_VERIFY_CLIENT(9)					      I2C and SMBus Subsystem					      I2C_VERIFY_CLIENT(9)

NAME
       i2c_verify_client - return parameter as i2c_client, or NULL

SYNOPSIS
       struct i2c_client * i2c_verify_client(struct device * dev);

ARGUMENTS
       dev
	   device, probably from some driver model iterator

DESCRIPTION
       When traversing the driver model tree, perhaps using driver model iterators like device_for_each_child(), you can't assume very much about
       the nodes you find. Use this function to avoid oopses caused by wrongly treating some non-I2C device as an i2c_client.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						      I2C_VERIFY_CLIENT(9)