[PATCH 12/13] drm/vmwgfx: Print warnings in kernel log about bo pinning that fails.

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From: Jakob Bornecrantz <jakob@xxxxxxxxxx>

Signed-off-by: Jakob Bornecrantz <jakob@xxxxxxxxxx>
Signed-off-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_fb.c  |    4 ++++
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c |    2 ++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index 06f4314..181f472 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -630,6 +630,10 @@ int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
 		goto err_unlock;
 
 	ret = ttm_bo_validate(bo, &ne_placement, false, false, false);
+
+	/* Could probably bug on */
+	WARN_ON(bo->offset != 0);
+
 	ttm_bo_unreserve(bo);
 err_unlock:
 	ttm_write_unlock(&vmw_priv->active_master->lock);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 250282f..b78dcf0 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -640,6 +640,8 @@ static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 
 	vmw_overlay_resume_all(dev_priv);
 
+	WARN_ON(ret != 0);
+
 	return 0;
 }
 
-- 
1.6.2.5

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