There is no default implementation for dma_buf_ops->unmap.
So add a function unmapping the page, otherwise we'll leak them.
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
samples/vfio-mdev/mbochs.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
index aa25cda21d..85ac603769 100644
--- a/samples/vfio-mdev/mbochs.c
+++ b/samples/vfio-mdev/mbochs.c
@@ -811,11 +811,18 @@ static void *mbochs_kmap_dmabuf(struct dma_buf *buf, unsigned long page_num)
return kmap(page);
}
+static void mbochs_kunmap_dmabuf(struct dma_buf *buf, unsigned long page_num,
+ void *vaddr)
+{
+ kunmap(vaddr);
+}
+
static struct dma_buf_ops mbochs_dmabuf_ops = {
.map_dma_buf = mbochs_map_dmabuf,
.unmap_dma_buf = mbochs_unmap_dmabuf,
.release = mbochs_release_dmabuf,
.map = mbochs_kmap_dmabuf,
+ .unmap = mbochs_kunmap_dmabuf,
.mmap = mbochs_mmap_dmabuf,
};
--
2.9.3
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