Most of the devices in OMAP family of SoCs are not using IOMMU. The
patch for converting the OMAP IOMMU to use generic IOMMU bus probe
functionality failed to add a check for this, so add it here.
Fixes: c822b37cac48 ("iommu/omap: Remove orphan_dev tracking")
Reported-by: Tomi Valkeinen <tomi.valkei...@ti.com>
Signed-off-by: Tero Kristo <t-kri...@ti.com>
---
Hi Joerg,
This patch applies on top of linux-next, fixing an issue present there
at the moment.
-Tero
drivers/iommu/omap-iommu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 6480d5a62e33..c8282cc212cb 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1727,6 +1727,9 @@ static struct iommu_group *omap_iommu_device_group(struct
device *dev)
struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
struct iommu_group *group = ERR_PTR(-EINVAL);
+ if (!arch_data)
+ return ERR_PTR(-ENODEV);
+
if (arch_data->iommu_dev)
group = iommu_group_ref_get(arch_data->iommu_dev->group);
--
2.17.1
--
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