From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 09:42:30 +0000 (+0000)
Subject: iommu/arm-smmu: fix error return code in arm_smmu_device_dt_probe()
X-Git-Tag: firefly_0821_release~176^2~4798^2^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=89a23cde75a7f0b3d8b0c156964eca0c23d2f1eb;p=firefly-linux-kernel-4.4.55.git

iommu/arm-smmu: fix error return code in arm_smmu_device_dt_probe()

Fix to return -ENODEV instead of 0 when context interrupt number
does no match in arm_smmu_device_dt_probe().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index ef77e3dd6dd2..e46a88700b68 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1852,6 +1852,7 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev)
 		dev_err(dev,
 			"found only %d context interrupt(s) but %d required\n",
 			smmu->num_context_irqs, smmu->num_context_banks);
+		err = -ENODEV;
 		goto out_put_parent;
 	}