[PATCH] drm/radeon/kms: add missing ring ready check in sync tests

[alexdeuc...@gmail.com]

From: Alex Deucher <alexander.deuc...@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/radeon/radeon_test.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_test.c 
b/drivers/gpu/drm/radeon/radeon_test.c
index 210d99f..dc5dcf4 100644
--- a/drivers/gpu/drm/radeon/radeon_test.c
+++ b/drivers/gpu/drm/radeon/radeon_test.c
@@ -471,6 +471,8 @@ void radeon_test_syncing(struct radeon_device *rdev)

                        for (k = 0; k < j; ++k) {
                                struct radeon_ring *ringC = &rdev->ring[k];
+                               if (!ringC->ready)
+                                       continue;

                                DRM_INFO("Testing syncing between rings %d, %d 
and %d...\n", i, j, k);
                                radeon_test_ring_sync2(rdev, ringA, ringB, 
ringC);
-- 
1.7.3.4