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>
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@ -811,11 +811,18 @@ static void *mbochs_kmap_dmabuf(struct dma_buf *buf, unsigned long page_num)
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return kmap(page);
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return kmap(page);
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}
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}
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static void mbochs_kunmap_dmabuf(struct dma_buf *buf, unsigned long page_num,
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void *vaddr)
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{
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kunmap(vaddr);
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}
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static struct dma_buf_ops mbochs_dmabuf_ops = {
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static struct dma_buf_ops mbochs_dmabuf_ops = {
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.map_dma_buf = mbochs_map_dmabuf,
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.map_dma_buf = mbochs_map_dmabuf,
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.unmap_dma_buf = mbochs_unmap_dmabuf,
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.unmap_dma_buf = mbochs_unmap_dmabuf,
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.release = mbochs_release_dmabuf,
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.release = mbochs_release_dmabuf,
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.map = mbochs_kmap_dmabuf,
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.map = mbochs_kmap_dmabuf,
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.unmap = mbochs_kunmap_dmabuf,
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.mmap = mbochs_mmap_dmabuf,
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.mmap = mbochs_mmap_dmabuf,
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};
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};
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