diff options
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/scan.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index c5fecf97ee2f..16e101f1f69d 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -782,6 +782,12 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) if (err) ops = ERR_PTR(err); + /* Ignore all other errors apart from EPROBE_DEFER */ + if (IS_ERR(ops) && (PTR_ERR(ops) != -EPROBE_DEFER)) { + dev_dbg(dev, "Adding to IOMMU failed: %ld\n", PTR_ERR(ops)); + ops = NULL; + } + return ops; } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index e39ec7b7cb67..3a10d7573477 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1371,8 +1371,8 @@ int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr) iort_set_dma_mask(dev); iommu = iort_iommu_configure(dev); - if (IS_ERR(iommu)) - return PTR_ERR(iommu); + if (IS_ERR(iommu) && PTR_ERR(iommu) == -EPROBE_DEFER) + return -EPROBE_DEFER; size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1); /* |