V4L/DVB: pvrusb2: Avoid using stack allocated buffers when performing USB I/O
V4L/DVB: pvrusb2: Avoid using stack allocated buffers when performing USB I/O

Drivers shouldn't assume that the stack is DMA-safe.

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

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