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drm/i915/opregion: make VBT size limit more strict

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The VBT in OpRegion should fit in mailbox #4.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/4bdb3f5820e3dbd1cdfa7b65cadfce4f80b880f0.1450089383.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2015-12-14 12:50:51 +02:00
parent f0067a31e8
commit 6531873464
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_opregion.c
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@ -988,7 +988,7 @@ int intel_opregion_setup(struct drm_device *dev)
if (!dmi_check_system(intel_no_opregion_vbt)) {
void *vbt = base + OPREGION_VBT_OFFSET;
u32 vbt_size = OPREGION_SIZE - OPREGION_VBT_OFFSET;
u32 vbt_size = OPREGION_ASLE_EXT_OFFSET - OPREGION_VBT_OFFSET;
if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion\n");