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authorLucas Stach <l.stach@pengutronix.de>2019-06-04 22:23:31 +0200
committerGerd Hoffmann <kraxel@redhat.com>2019-06-05 10:41:17 +0200
commit283f1e383e91d96fe652fad549537ae15cf31d60 (patch)
tree8e4d1f68acea5d2dc87c09ec573e3b987d73b03f
parent89a4aac0ab0e6f5eea10d7bf4869dd15c3de2cd4 (diff)
udmabuf: actually unmap the scatterlistdrm-misc-fixes-2019-06-05
unmap_udmabuf fails to actually unmap the scatterlist, leaving dangling mappings around. Fixes: fbb0de795078 ("Add udmabuf misc device") Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Link: http://patchwork.freedesktop.org/patch/msgid/20190604202331.17482-1-l.stach@pengutronix.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--drivers/dma-buf/udmabuf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index cd57747286f2..9635897458a0 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -77,6 +77,7 @@ static void unmap_udmabuf(struct dma_buf_attachment *at,
struct sg_table *sg,
enum dma_data_direction direction)
{
+ dma_unmap_sg(at->dev, sg->sgl, sg->nents, direction);
sg_free_table(sg);
kfree(sg);
}