[Intel-gfx] [PATCH 1/3] drm/i915/dp: Check if the sink crc we read is 6 bytes.

[Dhinakaran Pandiyan]

We attempt to read 6 bytes, make sure we have.

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 62f82c4298ac..7dcc874b7d8f 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3989,7 +3989,7 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, struct intel_crtc_state *crtc_s
 		goto stop;
 	}
 
-	if (drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_CRC_R_CR, crc, 6) < 0) {
+	if (drm_dp_dpcd_read(&intel_dp->aux, DP_TEST_CRC_R_CR, crc, 6) != 6) {
 		ret = -EIO;
 		goto stop;
 	}
-- 
2.14.1