linux-kernel - [PATCH v2 04/13] iommu/rockchip: Fix error handling in probe

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Message-Id: <20180116132540.18939-5-jeffy.chen@rock-chips.com>
Date:   Tue, 16 Jan 2018 21:25:31 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     linux-kernel@...r.kernel.org
Cc:     jcliang@...omium.org, robin.murphy@....com, xxm@...k-chips.com,
        tfiga@...omium.org, Jeffy Chen <jeffy.chen@...k-chips.com>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-rockchip@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, Joerg Roedel <joro@...tes.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 04/13] iommu/rockchip: Fix error handling in probe

Add missing iommu_device_sysfs_remove in error path.

Also adjust sequence of deinit functions in the remove.

Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

Changes in v2: None

 drivers/iommu/rockchip-iommu.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 4ffb3a65c9d2..bd8b32dc0db6 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1182,18 +1182,20 @@ static int rk_iommu_probe(struct platform_device *pdev)
 
 	iommu_device_set_ops(&iommu->iommu, &rk_iommu_ops);
 	err = iommu_device_register(&iommu->iommu);
+	if (err) {
+		iommu_device_sysfs_remove(&iommu->iommu);
+		return err;
+	}
 
-	return err;
+	return 0;
 }
 
 static int rk_iommu_remove(struct platform_device *pdev)
 {
 	struct rk_iommu *iommu = platform_get_drvdata(pdev);
 
-	if (iommu) {
-		iommu_device_sysfs_remove(&iommu->iommu);
-		iommu_device_unregister(&iommu->iommu);
-	}
+	iommu_device_unregister(&iommu->iommu);
+	iommu_device_sysfs_remove(&iommu->iommu);
 
 	return 0;
 }
-- 
2.11.0