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Date:   Wed,  1 Apr 2020 23:20:08 +0800
From:   Tang Bin <tangbin@...s.chinamobile.com>
To:     robdclark@...il.com, agross@...nel.org
Cc:     bjorn.andersson@...aro.org, joro@...tes.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tang Bin <tangbin@...s.chinamobile.com>
Subject: [PATCH] iommu/qcom:fix local_base status check

Release resources when exiting on error.

Signed-off-by: Tang Bin <tangbin@...s.chinamobile.com>
---
 drivers/iommu/qcom_iommu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index 4328da0b0..d4ec38b1e 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -815,6 +815,8 @@ static int qcom_iommu_device_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res)
 		qcom_iommu->local_base = devm_ioremap_resource(dev, res);
+		if (IS_ERR(qcom_iommu->local_base))
+			return PTR_ERR(qcom_iommu->local_base);
 
 	qcom_iommu->iface_clk = devm_clk_get(dev, "iface");
 	if (IS_ERR(qcom_iommu->iface_clk)) {
-- 
2.20.1.windows.1



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