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Commit f9d8a129 authored Jul 04, 2013 by Joonyoung Shim Committed by Dave Airlie Jul 05, 2013

drm/prime: fix sgt NULL checking



The drm_gem_map_detach() can be called with sgt is NULL.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

parent 63eef600

drivers/gpu/drm/drm_prime.c

+6 −5

Original line number	Diff line number	Diff line
		@@ -119,12 +119,13 @@ static void drm_gem_map_detach(struct dma_buf *dma_buf,
		return;

		sgt = prime_attach->sgt;

		if (sgt) {
		if (prime_attach->dir != DMA_NONE)
		dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents,
		prime_attach->dir);

		sg_free_table(sgt);
		}

		kfree(sgt);
		kfree(prime_attach);
		attach->priv = NULL;