diff options
Diffstat (limited to 'drivers/usb/core/sysfs.c')
| -rw-r--r-- | drivers/usb/core/sysfs.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 5a1a0e2b647..313e241f5cc 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -389,34 +389,25 @@ set_level(struct device *dev, struct device_attribute *attr, struct usb_device *udev = to_usb_device(dev); int len = count; char *cp; - int rc = 0; - int old_autosuspend_disabled; + int rc; cp = memchr(buf, '\n', count); if (cp) len = cp - buf; usb_lock_device(udev); - old_autosuspend_disabled = udev->autosuspend_disabled; - /* Setting the flags without calling usb_pm_lock is a subject to - * races, but who cares... - */ if (len == sizeof on_string - 1 && - strncmp(buf, on_string, len) == 0) { - udev->autosuspend_disabled = 1; - rc = usb_external_resume_device(udev, PMSG_USER_RESUME); + strncmp(buf, on_string, len) == 0) + rc = usb_disable_autosuspend(udev); - } else if (len == sizeof auto_string - 1 && - strncmp(buf, auto_string, len) == 0) { - udev->autosuspend_disabled = 0; - rc = usb_external_resume_device(udev, PMSG_USER_RESUME); + else if (len == sizeof auto_string - 1 && + strncmp(buf, auto_string, len) == 0) + rc = usb_enable_autosuspend(udev); - } else + else rc = -EINVAL; - if (rc) - udev->autosuspend_disabled = old_autosuspend_disabled; usb_unlock_device(udev); return (rc < 0 ? rc : count); } |