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Subject[PATCH] iommu/tegra-smmu: fix error checking for debugfs_create_dir()
Date
The return value of debugfs_create_dir() should be checked using the
IS_ERR() function.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

drivers/iommu/tegra-smmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index e445f80d0226..cd1d80c4c673 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -1056,7 +1056,7 @@ DEFINE_SHOW_ATTRIBUTE(tegra_smmu_clients);
static void tegra_smmu_debugfs_init(struct tegra_smmu *smmu)
{
smmu->debugfs = debugfs_create_dir("smmu", NULL);
- if (!smmu->debugfs)
+ if (IS_ERR(smmu->debugfs))
return;

debugfs_create_file("swgroups", S_IRUGO, smmu->debugfs, smmu,
--
2.42.0
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