[PATCH] USB HCDs: no longer need to register root hub

This patch changes the host controller drivers; they no longer need to
register their root hubs because usbcore will take care of it for them.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 28 deletions

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 0da996191251..13cd2177b557 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -505,13 +505,10 @@ static int ohci_init (struct ohci_hcd *ohci)
 /* Start an OHCI controller, set the BUS operational
  * resets USB and controller
  * enable interrupts 
- * connect the virtual root hub
  */
 static int ohci_run (struct ohci_hcd *ohci)
 {
         u32                     mask, temp;
-        struct usb_device       *udev;
-        struct usb_bus          *bus;
         int                     first = ohci->fminterval == 0;
 
         disable (ohci);
@@ -672,36 +669,13 @@ retry:
 
         // POTPGT delay is bits 24-31, in 2 ms units.
         mdelay ((temp >> 23) & 0x1fe);
-        bus = &ohci_to_hcd(ohci)->self;
         ohci_to_hcd(ohci)->state = HC_STATE_RUNNING;
 
         ohci_dump (ohci, 1);
 
-        udev = bus->root_hub;
-        if (udev) {
-                return 0;
-        }
- 
-        /* connect the virtual root hub */
-        udev = usb_alloc_dev (NULL, bus, 0);
-        if (!udev) {
-                disable (ohci);
-                ohci->hc_control &= ~OHCI_CTRL_HCFS;
-                ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
-                return -ENOMEM;
-        }
-
-        udev->speed = USB_SPEED_FULL;
-        if (usb_hcd_register_root_hub (udev, ohci_to_hcd(ohci)) != 0) {
-                usb_put_dev (udev);
-                disable (ohci);
-                ohci->hc_control &= ~OHCI_CTRL_HCFS;
-                ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
-                return -ENODEV;
-        }
+        if (ohci_to_hcd(ohci)->self.root_hub == NULL)
+                create_debug_files (ohci);
 
-        register_reboot_notifier (&ohci->reboot_notifier);
-        create_debug_files (ohci);
         return 0;
 }