fpga: dfl: afu: Pass the correct device to dma_mapping_error()
dma_mapping_error() was being called on a different device struct than what was passed to map/unmap. Besides rendering the error checking ineffective, it caused a debug splat with CONFIG_DMA_API_DEBUG. Signed-off-by: Scott Wood <swood@redhat.com> Acked-by: Wu Hao <hao.wu@intel.com> Acked-by: Moritz Fischer <mdf@kernel.org> Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -399,7 +399,7 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata,
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region->pages[0], 0,
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region->length,
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DMA_BIDIRECTIONAL);
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if (dma_mapping_error(&pdata->dev->dev, region->iova)) {
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if (dma_mapping_error(dfl_fpga_pdata_to_parent(pdata), region->iova)) {
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dev_err(&pdata->dev->dev, "failed to map for dma\n");
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ret = -EFAULT;
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goto unpin_pages;
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