drm/i915/gvt: Check if get_next_pt_type() always returns a valid value

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According to gtt_type_table[] function get_next_pt_type() may returns
GTT_TYPE_INVALID in some cases. To prevent driver to try to create memory
page with invalid data type, additional check is added.

Signed-off-by: Aleksei Gimbitskii <aleksei.gimbitskii@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Colin Xu <colin.xu@intel.com>
Reviewed-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

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Aleksei Gimbitskii 2019-04-23 15:04:13 +03:00 • committed by Zhenyu Wang

parent 4feeea1d8d

commit 930c8dfea4

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/i915/gvt/gtt.c

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