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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-01-07 11:09:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-08 21:12:47 +0300 |
| commit | 6be5b626bec130f83c3b370bd4965b09c507458d (patch) | |
| tree | 3afb899ac1c0754856947a8fde5cf167319fe0ea /drivers/iommu | |
| parent | 2b04bb51a9c10e3f7400dcb67db2b70c60eb5a9a (diff) | |
| download | linux-6be5b626bec130f83c3b370bd4965b09c507458d.tar.xz | |
iommu/tegra-smmu: Fix missing put_device() call in tegra_smmu_find
commit 9826e393e4a8c3df474e7f9eacd3087266f74005 upstream.
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: 765a9d1d02b2 ("iommu/tegra-smmu: Fix mc errors on tegra124-nyan")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20220107080915.12686-1-linmq006@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 0a281833f611..abbdaeb4bf8f 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -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; } |