drm/i915: Avoid overflow in computing pot_hole loop termination
When using the mock_ppgtt selftest, the GTT is large enough to cause an overflow in pot_hole() when adding 2 pages to the address. Avoid the overflow by computing the final valid address and iterating up to that address. Signed-off-by:Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170214092344.12330-1-chris@chris-wilson.co.uk Reviewed-by:
Matthew Auld <matthew.auld@intel.com>
parent
96676fe3
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