[Intel-gfx] [PATCH 5/7] drm/i915/sdvo: Don't unpack stack garbage

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Pass the length returned by intel_sdvo_read_infoframe() to
hdmi_infoframe_unpack() so that we don't try to unpack any
leftover stack garbage.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_sdvo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 1e0102f1710f..4e701c8f8971 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1128,7 +1128,7 @@ static void intel_sdvo_get_avi_infoframe(struct intel_sdvo *intel_sdvo,
 	crtc_state->infoframes.enable |=
 		intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI);
 
-	ret = hdmi_infoframe_unpack(frame, sdvo_data, sizeof(sdvo_data));
+	ret = hdmi_infoframe_unpack(frame, sdvo_data, len);
 	if (ret) {
 		DRM_DEBUG_KMS("Failed to unpack AVI infoframe\n");
 		return;
-- 
2.21.0