[PATCH] usb/gadget: use dummy_pullup() instead of open coding

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The only difference is that the first replacement in
usb_gadget_unregister_driver() now also calls usb_hcd_poll_rh_status().
It doesn't look like it causes any harm.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 drivers/usb/gadget/dummy_hcd.c |   20 +++-----------------
 1 files changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 3214ca3..8243d8c 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -804,12 +804,7 @@ usb_gadget_probe_driver(struct usb_gadget_driver *driver,
 	}
 
 	/* khubd will enumerate this in a while */
-	spin_lock_irq (&dum->lock);
-	dum->pullup = 1;
-	set_link_state (dum);
-	spin_unlock_irq (&dum->lock);
-
-	usb_hcd_poll_rh_status (dummy_to_hcd (dum));
+	dummy_pullup(&dum->gadget, 1);
 	return 0;
 }
 EXPORT_SYMBOL(usb_gadget_probe_driver);
@@ -818,7 +813,6 @@ int
 usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 {
 	struct dummy	*dum = the_controller;
-	unsigned long	flags;
 
 	if (!dum)
 		return -ENODEV;
@@ -828,21 +822,13 @@ usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 	dev_dbg (udc_dev(dum), "unregister gadget driver '%s'\n",
 			driver->driver.name);
 
-	spin_lock_irqsave (&dum->lock, flags);
-	dum->pullup = 0;
-	set_link_state (dum);
-	spin_unlock_irqrestore (&dum->lock, flags);
+	dummy_pullup(&dum->gadget, 0);
 
 	driver->unbind (&dum->gadget);
 	dum->gadget.dev.driver = NULL;
 	dum->driver = NULL;
 
-	spin_lock_irqsave (&dum->lock, flags);
-	dum->pullup = 0;
-	set_link_state (dum);
-	spin_unlock_irqrestore (&dum->lock, flags);
-
-	usb_hcd_poll_rh_status (dummy_to_hcd (dum));
+	dummy_pullup(&dum->gadget, 0);
 	return 0;
 }
 EXPORT_SYMBOL (usb_gadget_unregister_driver);
-- 
1.7.4.4

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