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Commit 7733e05b authored by Gerd Hoffmann's avatar Gerd Hoffmann Committed by Alex Williamson
Browse files

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: default avatarGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 2203d8a7

samples/vfio-mdev/mbochs.c

+7 −0
Original line number Diff line number Diff line
@@ -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,

};