[PATCH] drm/radeon: fix non revealent error message

[j.glisse at gmail.com]

From: Jerome Glisse <jglisse at redhat.com>

We want to print link status query failed only if it's
an unexepected fail. If we query to see if we need
link training it might be because there is nothing
connected and thus link status query have the right
to fail in that case.

To avoid printing failure when it's expected, move the
failure message to proper place.

Cc: stable at vger.kernel.org
Signed-off-by: Jerome Glisse <jglisse at redhat.com>
---
 drivers/gpu/drm/radeon/atombios_dp.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 7bb5d7e..43e9bcd 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -22,6 +22,7 @@
  *
  * Authors: Dave Airlie
  *          Alex Deucher
+ *          Jerome Glisse
  */
 #include "drmP.h"
 #include "radeon_drm.h"
@@ -654,7 +655,6 @@ static bool radeon_dp_get_link_status(struct radeon_connector *radeon_connector,
 	ret = radeon_dp_aux_native_read(radeon_connector, DP_LANE0_1_STATUS,
 					link_status, DP_LINK_STATUS_SIZE, 100);
 	if (ret <= 0) {
-		DRM_ERROR("displayport link status failed\n");
 		return false;
 	}
 
@@ -833,8 +833,10 @@ static int radeon_dp_link_train_cr(struct radeon_dp_link_train_info *dp_info)
 		else
 			mdelay(dp_info->rd_interval * 4);
 
-		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status))
+		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) {
+			DRM_ERROR("displayport link status failed\n");
 			break;
+		}
 
 		if (dp_clock_recovery_ok(dp_info->link_status, dp_info->dp_lane_count)) {
 			clock_recovery = true;
@@ -896,8 +898,10 @@ static int radeon_dp_link_train_ce(struct radeon_dp_link_train_info *dp_info)
 		else
 			mdelay(dp_info->rd_interval * 4);
 
-		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status))
+		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) {
+			DRM_ERROR("displayport link status failed\n");
 			break;
+		}
 
 		if (dp_channel_eq_ok(dp_info->link_status, dp_info->dp_lane_count)) {
 			channel_eq = true;
-- 
1.7.10.4