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charset="utf-8" debugfs_create_file() will simply return early if smmu->debugfs is an error pointer. Make smmu->debugfs check delete in tegra_smmu_debugfs_init(). Signed-off-by: Minjie Du Acked-by: Thierry Reding --- drivers/iommu/tegra-smmu.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 1cbf063cc..2137040b7 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -1056,8 +1056,6 @@ DEFINE_SHOW_ATTRIBUTE(tegra_smmu_clients); static void tegra_smmu_debugfs_init(struct tegra_smmu *smmu) { smmu->debugfs =3D debugfs_create_dir("smmu", NULL); - if (!smmu->debugfs) - return; =20 debugfs_create_file("swgroups", S_IRUGO, smmu->debugfs, smmu, &tegra_smmu_swgroups_fops); --=20 2.39.0