From 5f5139974c2030e0937d3ae01f17da1238281f11 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 2 Feb 2023 16:12:14 +0100 Subject: kernel/time/test_udelay.c: fix memory leak with using debugfs_lookup() 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. Link: https://lore.kernel.org/r/20230202151214.2306822-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- kernel/time/test_udelay.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel') diff --git a/kernel/time/test_udelay.c b/kernel/time/test_udelay.c index 13b11eb62685..20d5df631570 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); } -- cgit v1.2.3