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@@ -7,6 +7,7 @@
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/init.h>
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+#include <linux/dma-mapping.h>
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#include <linux/isa.h>
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static struct device isa_bus = {
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@@ -141,6 +142,9 @@ int isa_register_driver(struct isa_driver *isa_driver, unsigned int ndev)
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isa_dev->dev.release = isa_dev_release;
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isa_dev->id = id;
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+ isa_dev->dev.coherent_dma_mask = DMA_24BIT_MASK;
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+ isa_dev->dev.dma_mask = &isa_dev->dev.coherent_dma_mask;
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+
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error = device_register(&isa_dev->dev);
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if (error) {
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put_device(&isa_dev->dev);
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