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USB: remove dead code from suspend/resume path 

If a driver does not support the suspend/resume callbacks
it will be forcibly disconnected. There is no reason to check
for support of the callbacks after that.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum 2012-01-02 15:11:48 +01:00 коммит произвёл Greg Kroah-Hartman
Родитель 35284b3d2f
Коммит e78832cdca
1 изменённых файлов: 7 добавлений и 21 удалений
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28
drivers/usb/core/driver.c
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@ -1079,17 +1079,10 @@ static int usb_suspend_interface(struct usb_device *udev,
goto done;
driver = to_usb_driver(intf->dev.driver);
if (driver->suspend) {
status = driver->suspend(intf, msg);
if (status && !PMSG_IS_AUTO(msg))
dev_err(&intf->dev, "%s error %d\n",
"suspend", status);
} else {
/* Later we will unbind the driver and reprobe */
intf->needs_binding = 1;
dev_warn(&intf->dev, "no %s for driver %s?\n",
"suspend", driver->name);
}
/* at this time we know the driver supports suspend */
status = driver->suspend(intf, msg);
if (status && !PMSG_IS_AUTO(msg))
dev_err(&intf->dev, "suspend error %d\n", status);
done:
dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status);
@ -1138,16 +1131,9 @@ static int usb_resume_interface(struct usb_device *udev,
"reset_resume", driver->name);
}
} else {
if (driver->resume) {
status = driver->resume(intf);
if (status)
dev_err(&intf->dev, "%s error %d\n",
"resume", status);
} else {
intf->needs_binding = 1;
dev_warn(&intf->dev, "no %s for driver %s?\n",
"resume", driver->name);
}
status = driver->resume(intf);
if (status)
dev_err(&intf->dev, "resume error %d\n", status);
}
done: