drm/i915: Check that the vma hasn't been closed before we insert it

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As there is a delay before we pin a vma, there is an opportunity for
another thread to have closed the vm and its vma (including us).
Check as soon as we acquire the vm->mutex and know the vm/vma is stable.

Closes: https://gitlab.freedesktop.org/drm/intel/issues/1291
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200221121940.2741563-1-chris@chris-wilson.co.uk

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Chris Wilson 2020-02-21 12:19:40 +00:00

parent deeee411a9

commit 00de702c6c

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drivers/gpu/drm/i915/i915_vma.c

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