The monitor-class number field is only 16 bits, so we have to use
a u16 pointer to access it.
Signed-off-by: NThomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com>
CC: stable@vger.kernel.org # v3.16+
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>