V4L/DVB: pvrusb2: Fix USB parent device reference count
V4L/DVB: pvrusb2: Fix USB parent device reference count

pvrusb2: Correctly reference count pointer to parent USB device when linked
from sysfs interface.  This is technically a pretty nasty problem,
however as far as I know nobody had been getting burned by it (yet).

Signed-off-by: Mike Isely <2ea935d8c40c107fcce175c9ba49ff51e4d69087@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs