drm/i915: Unpin stolen pages
authorBen Widawsky <ben@bwidawsk.net>
Fri, 31 May 2013 21:46:20 +0000 (14:46 -0700)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 3 Jun 2013 08:49:08 +0000 (10:49 +0200)
commit1d64ae719b436f2a5f8f5da801b4c560bf24aaa9
tree72e2b76808678eb078155b05d33d8f3094865211
parentdd53e1b0ed82ba72b2e9f11ae9c3d38bb82113cc
drm/i915: Unpin stolen pages

The way the stolen handling works is we take a pin on the backing pages,
but we never actually get a reference to the bo. On freeing objects
allocated with stolen memory, the final unref will end up freeing the
object with pinned pages count left. To enable an assertion to catch
bugs in this code path, this patch cleans up that remaining pin.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem.c