USB: core: no need to save usb_devices_root
diff mbox series

Message ID YCubCA/trHAF7PtF@kroah.com
State Accepted
Commit 9c174b57c98e78310a15cf9808cf417fa4a65d9b
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Series
  • USB: core: no need to save usb_devices_root
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Commit Message

Greg KH Feb. 16, 2021, 10:14 a.m. UTC
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(-)

Patch
diff mbox series

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));
 }
 
 /*