diff options
| author |   Wei Yongjun <weiyongjun1@huawei.com> | 2017-12-20 03:06:09 +0000 |
|---|---|---|
| committer |   Thierry Reding <treding@nvidia.com> | 2017-12-20 18:32:08 +0100 |
| commit | 83476bfaf6ac1cebf0cc5a3bdcf5031ef875cf42 (patch) | |
| tree | c88d555e200ff98ead65e814d201c4acf6d2213b /drivers/iommu/tegra-smmu.c | |
| parent | iommu/tegra: Allow devices to be grouped (diff) | |
| download | linux-dev-83476bfaf6ac1cebf0cc5a3bdcf5031ef875cf42.tar.xz linux-dev-83476bfaf6ac1cebf0cc5a3bdcf5031ef875cf42.zip | |
iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get()
In case of error, the function iommu_group_alloc() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().
Fixes: 7f4c9176f760 ("iommu/tegra: Allow devices to be grouped")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/iommu/tegra-smmu.c')
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 8885635d0a3b..44d40bc771b5 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -832,7 +832,7 @@ static struct iommu_group *tegra_smmu_group_get(struct tegra_smmu *smmu, group->soc = soc; group->group = iommu_group_alloc(); - if (!group->group) { + if (IS_ERR(group->group)) { devm_kfree(smmu->dev, group); mutex_unlock(&smmu->lock); return NULL; |