From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> [ Upstream commit 5b268d8abaec6cbd4bd70d062e769098d96670aa ] When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once. Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20230202151214.2306822-1-gregkh@xxxxxxxxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- kernel/time/test_udelay.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/time/test_udelay.c b/kernel/time/test_udelay.c index 13b11eb62685e..20d5df631570e 100644 --- a/kernel/time/test_udelay.c +++ b/kernel/time/test_udelay.c @@ -149,7 +149,7 @@ module_init(udelay_test_init); static void __exit udelay_test_exit(void) { mutex_lock(&udelay_test_lock); - debugfs_remove(debugfs_lookup(DEBUGFS_FILENAME, NULL)); + debugfs_lookup_and_remove(DEBUGFS_FILENAME, NULL); mutex_unlock(&udelay_test_lock); } -- 2.39.0
