linux-kernel - [PATCH 12/14] iommu/omap: simplify probe

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Message-ID: <20250925122756.10910-13-johan@kernel.org>
Date: Thu, 25 Sep 2025 14:27:54 +0200
From: Johan Hovold <johan@...nel.org>
To: Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>
Cc: Robin Murphy <robin.murphy@....com>,
	Sven Peter <sven@...nel.org>,
	Janne Grunau <j@...nau.net>,
	Rob Clark <robin.clark@....qualcomm.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Yong Wu <yong.wu@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Chen-Yu Tsai <wens@...e.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Krishna Reddy <vdumpa@...dia.com>,
	iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan@...nel.org>
Subject: [PATCH 12/14] iommu/omap: simplify probe_device() error handling

Simplify the probe_device() error handling by dropping the iommu OF node
reference sooner.

Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/iommu/omap-iommu.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 77023d49bd24..844def804777 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1668,23 +1668,20 @@ static struct iommu_device *omap_iommu_probe_device(struct device *dev)
 		}
 
 		pdev = of_find_device_by_node(np);
+		of_node_put(np);
 		if (!pdev) {
-			of_node_put(np);
 			ret = -ENODEV;
 			goto err_put_iommus;
 		}
 
 		oiommu = platform_get_drvdata(pdev);
 		if (!oiommu) {
-			of_node_put(np);
 			ret = -EINVAL;
 			goto err_put_iommus;
 		}
 
 		tmp->iommu_dev = oiommu;
 		tmp->dev = &pdev->dev;
-
-		of_node_put(np);
 	}
 
 	dev_iommu_priv_set(dev, arch_data);
-- 
2.49.1