On Thu, Nov 24, 2016 at 12:20:17PM +0100, Marek Szyprowski wrote: > @@ -744,6 +744,7 @@ static struct iommu_domain *exynos_iommu_domain_alloc(unsigned type) > DMA_TO_DEVICE); > /* For mapping page table entries we rely on dma == phys */ > BUG_ON(handle != virt_to_phys(domain->pgtable)); > + BUG_ON(dma_mapping_error(dma_dev, handle)); A BUG_ON is a bad way of handling this. Please propagate the error upwards, there is no need to crash the kernel because of a failure like this. Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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