USB: core: Fix unused variable warning in usb_alloc_dev()

The kernel test robot reported that a recent commit caused a "variable
set but not used" warning.  As a result of that commit, the variable
no longer serves any purpose; it should be removed.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308092350.HR4PVHUt-lkp@intel.com/
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: 1e4c574225cc ("USB: Remove remnants of Wireless USB and UWB")
Link: https://lore.kernel.org/r/7223cc66-f006-42ae-9f30-a6c546bf97a7@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 0945ff8..2a938cf 100644 (file)
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -645,7 +645,6 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
 {
        struct usb_device *dev;
        struct usb_hcd *usb_hcd = bus_to_hcd(bus);
-       unsigned root_hub = 0;
        unsigned raw_port = port1;
 
        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@@ -695,7 +694,6 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
                dev->dev.parent = bus->controller;
                device_set_of_node_from_dev(&dev->dev, bus->sysdev);
                dev_set_name(&dev->dev, "usb%d", bus->busnum);
-               root_hub = 1;
        } else {
                /* match any labeling on the hubs; it's one-based */
                if (parent->devpath[0] == '0') {