Merge "drm/msm: avoid unmapping the buffer twice during msm_release"

	if (msm_obj->pages) {

		if (msm_obj->sgt) {

			/* For non-cached buffers, ensure the new

			 * pages are clean because display controller,

			 * GPU, etc. are not coherent:

			 */

			if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED))

				dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl,

					     msm_obj->sgt->nents,

					     DMA_BIDIRECTIONAL);

			sg_free_table(msm_obj->sgt);

			kfree(msm_obj->sgt);

		}