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path: root/drivers/acpi/scan.c
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Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r--drivers/acpi/scan.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 192691880d55..2a513cce332e 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1373,20 +1373,25 @@ enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
* @dev: The pointer to the device
* @attr: device dma attributes
*/
-void acpi_dma_configure(struct device *dev, enum dev_dma_attr attr)
+int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr)
{
const struct iommu_ops *iommu;
+ u64 size;
iort_set_dma_mask(dev);
iommu = iort_iommu_configure(dev);
+ if (IS_ERR(iommu))
+ return PTR_ERR(iommu);
+ size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
/*
* Assume dma valid range starts at 0 and covers the whole
* coherent_dma_mask.
*/
- arch_setup_dma_ops(dev, 0, dev->coherent_dma_mask + 1, iommu,
- attr == DEV_DMA_COHERENT);
+ arch_setup_dma_ops(dev, 0, size, iommu, attr == DEV_DMA_COHERENT);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(acpi_dma_configure);