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authorGreg Kroah-Hartman2021-02-16 16:50:20 +0100
committerThomas Gleixner2021-03-18 11:20:26 +0100
commit44511ab344c755d1f216bf421e92fbc2777e87fe (patch)
tree7daad7afa19628fb17d802c58d43d098df96e412 /kernel/time
parent1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff)
time/debug: Remove dentry pointer for debugfs
There is no need to keep the dentry pointer around for the created debugfs file, as it is only needed when removing it from the system. When it is to be removed, ask debugfs itself for the pointer, to save on storage and make things a bit simpler. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210216155020.1012407-1-gregkh@linuxfoundation.org
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/test_udelay.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/time/test_udelay.c b/kernel/time/test_udelay.c
index 77c63005dc4e..13b11eb62685 100644
--- a/kernel/time/test_udelay.c
+++ b/kernel/time/test_udelay.c
@@ -21,7 +21,6 @@
#define DEBUGFS_FILENAME "udelay_test"
static DEFINE_MUTEX(udelay_test_lock);
-static struct dentry *udelay_test_debugfs_file;
static int udelay_test_usecs;
static int udelay_test_iterations = DEFAULT_ITERATIONS;
@@ -138,8 +137,8 @@ static const struct file_operations udelay_test_debugfs_ops = {
static int __init udelay_test_init(void)
{
mutex_lock(&udelay_test_lock);
- udelay_test_debugfs_file = debugfs_create_file(DEBUGFS_FILENAME,
- S_IRUSR, NULL, NULL, &udelay_test_debugfs_ops);
+ debugfs_create_file(DEBUGFS_FILENAME, S_IRUSR, NULL, NULL,
+ &udelay_test_debugfs_ops);
mutex_unlock(&udelay_test_lock);
return 0;
@@ -150,7 +149,7 @@ module_init(udelay_test_init);
static void __exit udelay_test_exit(void)
{
mutex_lock(&udelay_test_lock);
- debugfs_remove(udelay_test_debugfs_file);
+ debugfs_remove(debugfs_lookup(DEBUGFS_FILENAME, NULL));
mutex_unlock(&udelay_test_lock);
}