iommu: arm-smmu: Return -EPROBE defer on tbu failure
Probe deferral may occur due to clock and regulator dependencies.
Change-Id: Ifd8e3dab8dae39b392fb3baa6ab3abf398c85839
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 1864e76..dd96670 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -4375,7 +4375,7 @@
/* Attempt to register child devices */
ret = device_for_each_child(dev, smmu, qsmmuv500_tbu_register);
if (ret)
- return -EINVAL;
+ return -EPROBE_DEFER;
return 0;
}