Messages in this thread Patch in this message | | | From | Miaoqian Lin <> | Subject | [PATCH] iommu/tegra-smmu: Fix missing put_device() call in tegra_smmu_find | Date | Fri, 7 Jan 2022 08:09:11 +0000 |
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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> --- drivers/iommu/tegra-smmu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
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; } -- 2.17.1
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