Commit 9826e393 authored by Miaoqian Lin's avatar Miaoqian Lin Committed by Joerg Roedel
Browse files

iommu/tegra-smmu: Fix missing put_device() call in tegra_smmu_find 



The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the error handling path.

Fixes: 765a9d1d ("iommu/tegra-smmu: Fix mc errors on tegra124-nyan")
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Acked-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20220107080915.12686-1-linmq006@gmail.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent b0083376

drivers/iommu/tegra-smmu.c

+3 −1
Original line number Diff line number Diff line
@@ -808,8 +808,10 @@ static struct tegra_smmu *tegra_smmu_find(struct device_node *np) 
		return NULL;



	mc = platform_get_drvdata(pdev);

	if (!mc)

	if (!mc) {

		put_device(&pdev->dev);

		return NULL;

	}



	return mc->smmu;

}