mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-28 13:22:57 +00:00
iommu/tegra-smmu: Drop unnecessary error check for for debugfs_create_dir()
The debugfs_create_dir() function returns error pointers.
It never returns NULL.
As Baolu suggested, this patch removes the error checking for
debugfs_create_dir in tegra-smmu.c. This is because the DebugFS kernel API
is developed in a way that the caller can safely ignore the errors that
occur during the creation of DebugFS nodes. The debugfs APIs have
a IS_ERR() judge in start_creating() which can handle it gracefully. So
these checks are unnecessary.
Fixes: d1313e7896
("iommu/tegra-smmu: Add debugfs support")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Baolu Lu <baolu.lu@linux.intel.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230901073056.1364755-1-ruanjinjie@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
parent
6465e260f4
commit
f7da9c0815
1 changed files with 0 additions and 2 deletions
|
@ -1056,8 +1056,6 @@ 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)
|
||||
return;
|
||||
|
||||
debugfs_create_file("swgroups", S_IRUGO, smmu->debugfs, smmu,
|
||||
&tegra_smmu_swgroups_fops);
|
||||
|
|
Loading…
Reference in a new issue