drm/vmwgfx: fix error return code in vmw_driver_load()

Fix to return -ENOMEM in the fence manager init error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -622,8 +622,10 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 	}
 
 	dev_priv->fman = vmw_fence_manager_init(dev_priv);
-	if (unlikely(dev_priv->fman == NULL))
+	if (unlikely(dev_priv->fman == NULL)) {
+		ret = -ENOMEM;
 		goto out_no_fman;
+	}
 
 	vmw_kms_save_vga(dev_priv);