The device struct itself already contains a pointer to its driver.
Use this consistently, instead of duplicating it.
Signed-off-by: NJulian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: NHarald Freudenberger <freude@linux.ibm.com>
Signed-off-by: NHeiko Carstens <hca@linux.ibm.com>