tree f89a8a3069ebe9828b8a08c4b123f52625bf0bc7
parent 130b9851933e6da636502cd85e1ba8f45f862e8c
author Dave Airlie <airlied@redhat.com> 1285568237 +1000
committer Dave Airlie <airlied@redhat.com> 1285888664 +1000

drm/gem: handlecount isn't really a kref so don't make it one.

There were lots of places being inconsistent since handle count
looked like a kref but it really wasn't.

Fix this my just making handle count an atomic on the object,
and have it increase the normal object kref.

Now i915/radeon/nouveau drivers can drop the normal reference on
userspace object creation, and have the handle hold it.

This patch fixes a memory leak or corruption on unload, because
the driver had no way of knowing if a handle had been actually
added for this object, and the fbcon object needed to know this
to clean itself up properly.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>