tree 45eb61fb816117ac0913fbe63d2e430bbfaa65a2
parent 040ac32048d5efabd557c1e0a6ab8aec2c710c56
author Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> 1174719169 +1100
committer Dave Airlie <airlied@linux.ie> 1174719622 +1100

drm: fix up mmap locking in preparation for ttm changes

This change is needed to protect againt disappearing maps which aren't common.
The map lists are protected using sturct_mutex but drm_mmap never locked it.

Signed-off-by: Dave Airlie <airlied@linux.ie>