Messages in this thread Patch in this message | | | Date | Tue, 16 Feb 2021 11:14:32 +0100 | From | Greg Kroah-Hartman <> | Subject | [PATCH] USB: core: no need to save usb_devices_root |
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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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- 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 8f07b0516100..829dc8e85b00 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)); } /* -- 2.30.1
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