iommu: arm-smmu: fix NULL pointer dereference



Fix NULL ptr deference issue in arm_smmu_iova_to_pte().

Change-Id: I628a41c0bf3a402403514b6d71b3bc47d52fb3c5
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>

parent 973bbae0

drivers/iommu/arm-smmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2979,7 +2979,7 @@ static uint64_t arm_smmu_iova_to_pte(struct iommu_domain *domain,
		struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
		struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;

		if (!ops)
		if (!ops \|\| !ops->iova_to_pte)
		return 0;

		spin_lock_irqsave(&smmu_domain->cb_lock, flags);