From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> [ Upstream commit a0bc3f78d0fffa8be1a73bf945a43bfe1c2871c1 ] 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. Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx> Cc: Pavel Machek <pavel@xxxxxx> Cc: Len Brown <len.brown@xxxxxxxxx> Link: https://lore.kernel.org/r/20230202151515.2309543-1-gregkh@xxxxxxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- kernel/power/energy_model.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c index 97e62469a6b32..1b902f986f91c 100644 --- a/kernel/power/energy_model.c +++ b/kernel/power/energy_model.c @@ -85,10 +85,7 @@ static void em_debug_create_pd(struct device *dev) static void em_debug_remove_pd(struct device *dev) { - struct dentry *debug_dir; - - debug_dir = debugfs_lookup(dev_name(dev), rootdir); - debugfs_remove_recursive(debug_dir); + debugfs_lookup_and_remove(dev_name(dev), rootdir); } static int __init em_debug_init(void) -- 2.39.2
