From 9c174b57c98e78310a15cf9808cf417fa4a65d9b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Feb 2021 11:14:32 +0100 Subject: [PATCH] USB: core: no need to save usb_devices_root There is no need to save the usb_devices debugfs file as we only need it when removing it, so have the debugfs code look it up when it is needed instead, saving the storage. Link: https://lore.kernel.org/r/YCubCA/trHAF7PtF@kroah.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/usb.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 8f07b05..829dc8e 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -950,17 +950,15 @@ static struct notifier_block usb_bus_nb = { .notifier_call = usb_bus_notify, }; -static struct dentry *usb_devices_root; - static void usb_debugfs_init(void) { - usb_devices_root = debugfs_create_file("devices", 0444, usb_debug_root, - NULL, &usbfs_devices_fops); + debugfs_create_file("devices", 0444, usb_debug_root, NULL, + &usbfs_devices_fops); } static void usb_debugfs_cleanup(void) { - debugfs_remove(usb_devices_root); + debugfs_remove(debugfs_lookup("devices", usb_debug_root)); } /* -- 2.7.4