Merge branch 'pci_set_drvdata'

Jingoo Han says:

====================
net: ethernet: remove unnecessary pci_set_drvdata() part 1

Since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound),
the driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>