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VMAs can be created and not bound. One may think of it as lazy cleanup, and safely gloss over the conditions which manufacture it. In either case, when the object backing the i915 vma is destroyed, we must cleanup the vma without stumbling into a bunch of pitfalls that assume the vma is bound. NOTE: I was pretty certain the above condition could only happen when we introduced the use of VMAs being looked up at execbuf, and already existing. Paulo has hit this though, so I must be missing something. As I believe the patch is correct anyway, therefore I won't scratch my head too hard. v2: use goto destroy as a compromise (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> 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> |
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