diff options
Diffstat (limited to 'drivers/usb/core/driver.c')
-rw-r--r-- | drivers/usb/core/driver.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index ee18d18..113e484 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -303,11 +303,11 @@ int usb_driver_claim_interface(struct usb_driver *driver, dev->driver = &driver->drvwrap.driver; usb_set_intfdata(iface, priv); - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); iface->condition = USB_INTERFACE_BOUND; mark_active(iface); iface->pm_usage_cnt = !(driver->supports_autosuspend); - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); /* if interface was already added, bind now; else let * the future device_add() bind it, bypassing probe() @@ -356,11 +356,11 @@ void usb_driver_release_interface(struct usb_driver *driver, dev->driver = NULL; usb_set_intfdata(iface, NULL); - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); iface->condition = USB_INTERFACE_UNBOUND; mark_quiesced(iface); iface->needs_remote_wakeup = 0; - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); } EXPORT_SYMBOL(usb_driver_release_interface); @@ -789,7 +789,7 @@ EXPORT_SYMBOL_GPL_FUTURE(usb_deregister); #ifdef CONFIG_PM -/* Caller has locked udev->pm_mutex */ +/* Caller has locked udev's pm_mutex */ static int suspend_device(struct usb_device *udev, pm_message_t msg) { struct usb_device_driver *udriver; @@ -816,7 +816,7 @@ done: return status; } -/* Caller has locked udev->pm_mutex */ +/* Caller has locked udev's pm_mutex */ static int resume_device(struct usb_device *udev) { struct usb_device_driver *udriver; @@ -842,7 +842,7 @@ done: return status; } -/* Caller has locked intf's usb_device's pm_mutex */ +/* Caller has locked intf's usb_device's pm mutex */ static int suspend_interface(struct usb_interface *intf, pm_message_t msg) { struct usb_driver *driver; @@ -1064,7 +1064,7 @@ int usb_resume_both(struct usb_device *udev) /* Propagate the resume up the tree, if necessary */ if (udev->state == USB_STATE_SUSPENDED) { if (parent) { - mutex_lock_nested(&parent->pm_mutex, parent->level); + usb_pm_lock(parent); parent->auto_pm = 1; status = usb_resume_both(parent); } else { @@ -1079,7 +1079,7 @@ int usb_resume_both(struct usb_device *udev) if (status == 0) status = resume_device(udev); if (parent) - mutex_unlock(&parent->pm_mutex); + usb_pm_unlock(parent); } else { /* Needed only for setting udev->dev.power.power_state.event @@ -1129,12 +1129,12 @@ int usb_resume_both(struct usb_device *udev) */ void usb_autosuspend_device(struct usb_device *udev, int dec_usage_cnt) { - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); udev->pm_usage_cnt -= dec_usage_cnt; if (udev->pm_usage_cnt <= 0) queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend, USB_AUTOSUSPEND_DELAY); - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); // dev_dbg(&udev->dev, "%s: cnt %d\n", // __FUNCTION__, udev->pm_usage_cnt); } @@ -1168,13 +1168,13 @@ int usb_autoresume_device(struct usb_device *udev, int inc_usage_cnt) { int status; - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); udev->pm_usage_cnt += inc_usage_cnt; udev->auto_pm = 1; status = usb_resume_both(udev); if (status != 0) udev->pm_usage_cnt -= inc_usage_cnt; - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); // dev_dbg(&udev->dev, "%s: status %d cnt %d\n", // __FUNCTION__, status, udev->pm_usage_cnt); return status; @@ -1215,13 +1215,13 @@ void usb_autopm_put_interface(struct usb_interface *intf) { struct usb_device *udev = interface_to_usbdev(intf); - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); if (intf->condition != USB_INTERFACE_UNBOUND && --intf->pm_usage_cnt <= 0) { queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend, USB_AUTOSUSPEND_DELAY); } - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); // dev_dbg(&intf->dev, "%s: cnt %d\n", // __FUNCTION__, intf->pm_usage_cnt); } @@ -1263,7 +1263,7 @@ int usb_autopm_get_interface(struct usb_interface *intf) struct usb_device *udev = interface_to_usbdev(intf); int status; - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); if (intf->condition == USB_INTERFACE_UNBOUND) status = -ENODEV; else { @@ -1273,7 +1273,7 @@ int usb_autopm_get_interface(struct usb_interface *intf) if (status != 0) --intf->pm_usage_cnt; } - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); // dev_dbg(&intf->dev, "%s: status %d cnt %d\n", // __FUNCTION__, status, intf->pm_usage_cnt); return status; @@ -1289,10 +1289,10 @@ static int usb_suspend(struct device *dev, pm_message_t message) if (is_usb_device(dev)) { struct usb_device *udev = to_usb_device(dev); - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); udev->auto_pm = 0; status = usb_suspend_both(udev, message); - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); } else status = 0; return status; @@ -1305,10 +1305,10 @@ static int usb_resume(struct device *dev) if (is_usb_device(dev)) { struct usb_device *udev = to_usb_device(dev); - mutex_lock_nested(&udev->pm_mutex, udev->level); + usb_pm_lock(udev); udev->auto_pm = 0; status = usb_resume_both(udev); - mutex_unlock(&udev->pm_mutex); + usb_pm_unlock(udev); /* Rebind drivers that had no suspend method? */ } else |