iommu: arm-smmu: Allow configurations with zero clocks



If no clocks are present in devicetree, ensure that smmu->num_clocks is
set to zero instead of an error value.

Change-Id: Ibc3ede250419dd0235f3aa481218e3a91cdb3630
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>

parent 74e7bd58

drivers/iommu/arm-smmu.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -3531,8 +3531,10 @@ static int arm_smmu_init_clocks(struct arm_smmu_device *smmu)
		smmu->num_clocks =
		of_property_count_strings(dev->of_node, "clock-names");

		if (smmu->num_clocks < 1)
		if (smmu->num_clocks < 1) {
		smmu->num_clocks = 0;
		return 0;
		}

		smmu->clocks = devm_kzalloc(
		dev, sizeof(smmu->clocks) smmu->num_clocks,