diff options
| -rw-r--r-- | drivers/iommu/omap-iommu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index 6699fe6d9e06..5a9ba815863b 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1726,6 +1726,9 @@ 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); |