Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[safe/jmp/linux-2.6] / drivers / usb / core / driver.c

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 64b91d6..2f3dc4c 100644 (file)
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -301,7 +301,7 @@ static int usb_probe_interface(struct device *dev)
 
        intf->condition = USB_INTERFACE_BINDING;
 
-       /* Bound interfaces are initially active.  They are
+       /* Probed interfaces are initially active.  They are
         * runtime-PM-enabled only if the driver has autosuspend support.
         * They are sensitive to their children's power states.
         */
@@ -437,11 +437,11 @@ int usb_driver_claim_interface(struct usb_driver *driver,
 
        iface->condition = USB_INTERFACE_BOUND;
 
-       /* Bound interfaces are initially active.  They are
+       /* Claimed interfaces are initially inactive (suspended).  They are
         * runtime-PM-enabled only if the driver has autosuspend support.
         * They are sensitive to their children's power states.
         */
-       pm_runtime_set_active(dev);
+       pm_runtime_set_suspended(dev);
        pm_suspend_ignore_children(dev, false);
        if (driver->supports_autosuspend)
                pm_runtime_enable(dev);
@@ -1170,7 +1170,7 @@ done:
 static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 {
        int                     status = 0;
-       int                     i = 0;
+       int                     i = 0, n = 0;
        struct usb_interface    *intf;
 
        if (udev->state == USB_STATE_NOTATTACHED ||
@@ -1179,7 +1179,8 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 
        /* Suspend all the interfaces and then udev itself */
        if (udev->actconfig) {
-               for (; i < udev->actconfig->desc.bNumInterfaces; i++) {
+               n = udev->actconfig->desc.bNumInterfaces;
+               for (i = n - 1; i >= 0; --i) {
                        intf = udev->actconfig->interface[i];
                        status = usb_suspend_interface(udev, intf, msg);
                        if (status != 0)
@@ -1192,7 +1193,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
        /* If the suspend failed, resume interfaces that did get suspended */
        if (status != 0) {
                msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME);
-               while (--i >= 0) {
+               while (++i < n) {
                        intf = udev->actconfig->interface[i];
                        usb_resume_interface(udev, intf, msg, 0);
                }