On Fri, 2013-07-19 at 20:14 +0200, Sebastian Andrzej Siewior wrote:

The problem is that platform_device_del() "releases" each ressource in its
tree. This does not work on platform_devices created by OF becuase they
were never added via insert_resource(). As a consequence old->parent in
__release_resource() is NULL and we explode while accessing ->child.
So I either I do something completly wrong _or_ nobody here tested the
rmmod path of their driver.

But that's wrong. I am not familar with all that new code, but from step
up, not having the resources in the resource tree is a bad idea to begin
with....

This patch provides a common function to unregister / remove devices
which added to the system via of_platform_populate(). While this works
now on my test case I have not tested any of the driver I modify here so
feedback is greatly appreciated.

Ben.