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| author | Gerd Hoffmann <kraxel@redhat.com> | 2018-06-25 08:44:52 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2018-06-26 00:27:23 -0600 |
| commit | 7733e05b34f5d855c5590d816b41ddfee972d188 (patch) | |
| tree | 392a39c4b933378a88435fd39691a64ead80ca7a /samples | |
| parent | 2203d8a76ea3b962559acfe3bb80eddfdfbc9cee (diff) | |
| download | lwn-7733e05b34f5d855c5590d816b41ddfee972d188.tar.gz lwn-7733e05b34f5d855c5590d816b41ddfee972d188.zip | |
sample/mdev/mbochs: add mbochs_kunmap_dmabuf
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@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/vfio-mdev/mbochs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c index aa25cda21d22..85ac6037696f 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, }; |