Marek Szyprowski wrote:
> +++ b/drivers/base/dma-mapping.c
> ...
> +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
> + void *cpu_addr, dma_addr_t dma_addr, size_t size)
> +{
> + int ret = -ENXIO;
> + ...
> + if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
> + return ret;
This will return -ENXIO if dma_mmap_from_coherent() succeeds.
Regards,
Clemens
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