drm/i915: Fix context locking in debugfs

This goes all the way back to the introduction of this debugfs file,
even though back then no locking really was required. None of the
intermediate patches fixed this.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-05-29 23:23:08 +02:00
commit f3d28878da