diff options
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index f6ed59cad90b..99ed39c89e0b 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1082,6 +1082,9 @@ static int exynos_iommu_add_device(struct device *dev) struct iommu_group *group; int ret; + if (!has_sysmmu(dev)) + return -ENODEV; + group = iommu_group_get(dev); if (!group) { @@ -1100,6 +1103,9 @@ static int exynos_iommu_add_device(struct device *dev) static void exynos_iommu_remove_device(struct device *dev) { + if (!has_sysmmu(dev)) + return; + iommu_group_remove_device(dev); } |