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path: root/drivers/iommu/tegra-smmu.c
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Diffstat (limited to 'drivers/iommu/tegra-smmu.c')
-rw-r--r--drivers/iommu/tegra-smmu.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index eb0109f98946..b34e5fd7fd9e 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -968,7 +968,6 @@ static ssize_t smmu_debugfs_stats_write(struct file *file,
{
struct smmu_debugfs_info *info;
struct smmu_device *smmu;
- struct dentry *dent;
int i;
enum {
_OFF = 0,
@@ -996,8 +995,7 @@ static ssize_t smmu_debugfs_stats_write(struct file *file,
if (i == ARRAY_SIZE(command))
return -EINVAL;
- dent = file->f_dentry;
- info = dent->d_inode->i_private;
+ info = file_inode(file)->i_private;
smmu = info->smmu;
offs = SMMU_CACHE_CONFIG(info->cache);
@@ -1032,15 +1030,11 @@ static ssize_t smmu_debugfs_stats_write(struct file *file,
static int smmu_debugfs_stats_show(struct seq_file *s, void *v)
{
- struct smmu_debugfs_info *info;
- struct smmu_device *smmu;
- struct dentry *dent;
+ struct smmu_debugfs_info *info = s->private;
+ struct smmu_device *smmu = info->smmu;
int i;
const char * const stats[] = { "hit", "miss", };
- dent = d_find_alias(s->private);
- info = dent->d_inode->i_private;
- smmu = info->smmu;
for (i = 0; i < ARRAY_SIZE(stats); i++) {
u32 val;
@@ -1054,14 +1048,12 @@ static int smmu_debugfs_stats_show(struct seq_file *s, void *v)
stats[i], val, offs);
}
seq_printf(s, "\n");
- dput(dent);
-
return 0;
}
static int smmu_debugfs_stats_open(struct inode *inode, struct file *file)
{
- return single_open(file, smmu_debugfs_stats_show, inode);
+ return single_open(file, smmu_debugfs_stats_show, inode->i_private);
}
static const struct file_operations smmu_debugfs_stats_fops = {