Commit 4fe18137 authored by Lucas Stach's avatar Lucas Stach Committed by Greg Kroah-Hartman

udmabuf: actually unmap the scatterlist

[ Upstream commit 283f1e38 ]

unmap_udmabuf fails to actually unmap the scatterlist, leaving dangling
mappings around.

Fixes: fbb0de79 ("Add udmabuf misc device")
Signed-off-by: default avatarLucas Stach <l.stach@pengutronix.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190604202331.17482-1-l.stach@pengutronix.deSigned-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 08f02cc9
...@@ -77,6 +77,7 @@ static void unmap_udmabuf(struct dma_buf_attachment *at, ...@@ -77,6 +77,7 @@ static void unmap_udmabuf(struct dma_buf_attachment *at,
struct sg_table *sg, struct sg_table *sg,
enum dma_data_direction direction) enum dma_data_direction direction)
{ {
dma_unmap_sg(at->dev, sg->sgl, sg->nents, direction);
sg_free_table(sg); sg_free_table(sg);
kfree(sg); kfree(sg);
} }
......
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