Commit 4953d141 authored by David Vrabel's avatar David Vrabel Committed by Greg Kroah-Hartman
Browse files

usb: don't update devnum for wusb devices



For WUSB devices, usb_dev.devnum is a device index and not the real
device address (which is managed by wusbcore).  Therefore, only set
devnum once (in choose_address()) and never change it.
Signed-off-by: default avatarDavid Vrabel <david.vrabel@csr.com>
Cc: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent fc721f51
......@@ -1245,6 +1245,13 @@ static void release_address(struct usb_device *udev)
}
}
static void update_address(struct usb_device *udev, int devnum)
{
/* The address for a WUSB device is managed by wusbcore. */
if (!udev->wusb)
udev->devnum = devnum;
}
#ifdef CONFIG_USB_SUSPEND
static void usb_stop_pm(struct usb_device *udev)
......@@ -1733,7 +1740,7 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
case 0:
/* TRSTRCY = 10 ms; plus some extra */
msleep(10 + 40);
udev->devnum = 0; /* Device now at address 0 */
update_address(udev, 0);
/* FALL THROUGH */
case -ENOTCONN:
case -ENODEV:
......@@ -2236,7 +2243,8 @@ static int hub_set_address(struct usb_device *udev, int devnum)
USB_REQ_SET_ADDRESS, 0, devnum, 0,
NULL, 0, USB_CTRL_SET_TIMEOUT);
if (retval == 0) {
udev->devnum = devnum; /* Device now using proper address */
/* Device now using proper address. */
update_address(udev, devnum);
usb_set_device_state(udev, USB_STATE_ADDRESS);
usb_ep0_reinit(udev);
}
......@@ -2491,7 +2499,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
fail:
if (retval) {
hub_port_disable(hub, port1, 0);
udev->devnum = devnum; /* for disconnect processing */
update_address(udev, devnum); /* for disconnect processing */
}
mutex_unlock(&usb_address0_mutex);
return retval;
......
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