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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-01-07 09:09:11 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-02-28 14:01:57 +0100 |
| commit | 9826e393e4a8c3df474e7f9eacd3087266f74005 (patch) | |
| tree | a65623e32351160b77f14c02d0054389e52a1fa9 /drivers/iommu | |
| parent | iommu/vt-d: Fix double list_add when enabling VMD in scalable mode (diff) | |
| download | linux-9826e393e4a8c3df474e7f9eacd3087266f74005.tar.xz linux-9826e393e4a8c3df474e7f9eacd3087266f74005.zip | |
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: 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>
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 e900e3c46903..2561ce8a2ce8 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; } |