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-rw-r--r--drivers/iommu/arm-smmu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 7638b579e08d..5496de58fc3b 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1509,7 +1509,8 @@ static int arm_smmu_domain_has_cap(struct iommu_domain *domain,
unsigned long cap)
{
struct arm_smmu_domain *smmu_domain = domain->priv;
- u32 features = smmu_domain->smmu->features;
+ struct arm_smmu_device *smmu = smmu_domain->smmu;
+ u32 features = smmu ? smmu->features : 0;
switch (cap) {
case IOMMU_CAP_CACHE_COHERENCY: