drm/nouveau/bios: memset dcb struct to zero before parsing

Fixes type/mask calculation being based on uninitialised data for VGA
outputs.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-09-08 10:33:32 +10:00
commit 595d373f1e