drm/vmwgfx: Don't flush fb if we're in the suspended state.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index 086ef04..b27a9f2 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -212,6 +212,9 @@
 		SVGAFifoCmdUpdate body;
 	} *cmd;
 
+	if (vmw_priv->suspended)
+		return;
+
 	spin_lock_irqsave(&par->dirty.lock, flags);
 	if (!par->dirty.active) {
 		spin_unlock_irqrestore(&par->dirty.lock, flags);