[PATCH] USB gadgetfs: fixes an error on writing to endpoint file

this patch fixes an "Invalid argument" error returned by a write to an
endpoint-file after reopening it in the gadgetfs module in the kernel
2.6.12.

This was testet only with dummy_hcd module!
Signed-off-by: NPavol Kurina  <kurina@gmx.net>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>

drivers/usb/gadget/inode.c

@@ -483,6 +483,7 @@ ep_release (struct inode *inode, struct file *fd)
 		data->state = STATE_EP_DISABLED;
 		data->desc.bDescriptorType = 0;
 		data->hs_desc.bDescriptorType = 0;
+		usb_ep_disable(data->ep);
 	}
 	put_ep (data);
 	return 0;