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path: root/drivers/usb/gadget/pxa2xx_udc.c
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Diffstat (limited to 'drivers/usb/gadget/pxa2xx_udc.c')
-rw-r--r--drivers/usb/gadget/pxa2xx_udc.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index 1ed506e9598..b78de969466 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -1623,7 +1623,6 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
if (!driver
|| driver->speed < USB_SPEED_FULL
|| !driver->bind
- || !driver->unbind
|| !driver->disconnect
|| !driver->setup)
return -EINVAL;
@@ -1694,7 +1693,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
if (!dev)
return -ENODEV;
- if (!driver || driver != dev->driver)
+ if (!driver || driver != dev->driver || !driver->unbind)
return -EINVAL;
local_irq_disable();
@@ -2638,9 +2637,11 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
{
struct pxa2xx_udc *dev = platform_get_drvdata(pdev);
+ if (dev->driver)
+ return -EBUSY;
+
udc_disable(dev);
remove_proc_files();
- usb_gadget_unregister_driver(dev->driver);
if (dev->got_irq) {
free_irq(IRQ_USB, dev);