drm: fix up mmap locking in preparation for ttm changes

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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>

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Thomas Hellstrom 2007-03-24 17:52:49 +11:00 • committed by Dave Airlie

parent 040ac32048

commit d7d8aac79d

1 changed files with 26 additions and 9 deletions

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drivers/char/drm/drm_vm.c

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