• Dave Airlie's avatar
    drm/gem: handlecount isn't really a kref so don't make it one. · 29d08b3e
    Dave Airlie authored
    
    
    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: default avatarChris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
    29d08b3e