* [PATCH] USB: core: no need to save usb_devices_root
@ 2021-02-16 10:14 Greg Kroah-Hartman
0 siblings, 0 replies; only message in thread
From: Greg Kroah-Hartman @ 2021-02-16 10:14 UTC (permalink / raw)
To: linux-usb; +Cc: linux-kernel
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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