fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / usb / gadget / dummy_hcd.c

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 9734cb7..3c2bc07 100644 (file)
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -36,7 +36,6 @@
 
 #define DEBUG
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
@@ -478,10 +477,9 @@ dummy_alloc_request (struct usb_ep *_ep, gfp_t mem_flags)
                return NULL;
        ep = usb_ep_to_dummy_ep (_ep);
 
-       req = kmalloc (sizeof *req, mem_flags);
+       req = kzalloc(sizeof(*req), mem_flags);
        if (!req)
                return NULL;
-       memset (req, 0, sizeof *req);
        INIT_LIST_HEAD (&req->queue);
        return &req->req;
 }
@@ -611,7 +609,8 @@ static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req)
        if (!dum->driver)
                return -ESHUTDOWN;
 
-       spin_lock_irqsave (&dum->lock, flags);
+       local_irq_save (flags);
+       spin_lock (&dum->lock);
        list_for_each_entry (req, &ep->queue, queue) {
                if (&req->req == _req) {
                        list_del_init (&req->queue);
@@ -620,7 +619,7 @@ static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req)
                        break;
                }
        }
-       spin_unlock_irqrestore (&dum->lock, flags);
+       spin_unlock (&dum->lock);
 
        if (retval == 0) {
                dev_dbg (udc_dev(dum),
@@ -628,6 +627,7 @@ static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req)
                                req, _ep->name, _req->length, _req->buf);
                _req->complete (_ep, _req);
        }
+       local_irq_restore (flags);
        return retval;
 }
 
@@ -779,7 +779,7 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
                return -EINVAL;
        if (dum->driver)
                return -EBUSY;
-       if (!driver->bind || !driver->unbind || !driver->setup
+       if (!driver->bind || !driver->setup
                        || driver->speed == USB_SPEED_UNKNOWN)
                return -EINVAL;
 
@@ -816,15 +816,14 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
        dum->gadget.dev.driver = &driver->driver;
        dev_dbg (udc_dev(dum), "binding gadget driver '%s'\n",
                        driver->driver.name);
-       if ((retval = driver->bind (&dum->gadget)) != 0) {
-               dum->driver = NULL;
-               dum->gadget.dev.driver = NULL;
-               return retval;
-       }
+       if ((retval = driver->bind (&dum->gadget)) != 0)
+               goto err_bind_gadget;
 
        driver->driver.bus = dum->gadget.dev.parent->bus;
-       driver_register (&driver->driver);
-       device_bind_driver (&dum->gadget.dev);
+       if ((retval = driver_register (&driver->driver)) != 0)
+               goto err_register;
+       if ((retval = device_bind_driver (&dum->gadget.dev)) != 0)
+               goto err_bind_driver;
 
        /* khubd will enumerate this in a while */
        spin_lock_irq (&dum->lock);
@@ -834,6 +833,20 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
 
        usb_hcd_poll_rh_status (dummy_to_hcd (dum));
        return 0;
+
+err_bind_driver:
+       driver_unregister (&driver->driver);
+err_register:
+       if (driver->unbind)
+               driver->unbind (&dum->gadget);
+       spin_lock_irq (&dum->lock);
+       dum->pullup = 0;
+       set_link_state (dum);
+       spin_unlock_irq (&dum->lock);
+err_bind_gadget:
+       dum->driver = NULL;
+       dum->gadget.dev.driver = NULL;
+       return retval;
 }
 EXPORT_SYMBOL (usb_gadget_register_driver);
 
@@ -845,7 +858,7 @@ usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 
        if (!dum)
                return -ENODEV;
-       if (!driver || driver != dum->driver)
+       if (!driver || driver != dum->driver || !driver->unbind)
                return -EINVAL;
 
        dev_dbg (udc_dev(dum), "unregister gadget driver '%s'\n",
@@ -889,11 +902,9 @@ EXPORT_SYMBOL (net2280_set_fifo_mode);
 static void
 dummy_gadget_release (struct device *dev)
 {
-#if 0          /* usb_bus_put isn't EXPORTed! */
        struct dummy    *dum = gadget_dev_to_dummy (dev);
 
-       usb_bus_put (&dummy_to_hcd (dum)->self);
-#endif
+       usb_put_hcd (dummy_to_hcd (dum));
 }
 
 static int dummy_udc_probe (struct platform_device *pdev)
@@ -915,12 +926,12 @@ static int dummy_udc_probe (struct platform_device *pdev)
        if (rc < 0)
                return rc;
 
-#if 0          /* usb_bus_get isn't EXPORTed! */
-       usb_bus_get (&dummy_to_hcd (dum)->self);
-#endif
+       usb_get_hcd (dummy_to_hcd (dum));
 
        platform_set_drvdata (pdev, dum);
-       device_create_file (&dum->gadget.dev, &dev_attr_function);
+       rc = device_create_file (&dum->gadget.dev, &dev_attr_function);
+       if (rc < 0)
+               device_unregister (&dum->gadget.dev);
        return rc;
 }
 
@@ -1541,7 +1552,7 @@ return_urb:
                        ep->already_seen = ep->setup_stage = 0;
 
                spin_unlock (&dum->lock);
-               usb_hcd_giveback_urb (dummy_to_hcd(dum), urb, NULL);
+               usb_hcd_giveback_urb (dummy_to_hcd(dum), urb);
                spin_lock (&dum->lock);
 
                goto restart;
@@ -1868,8 +1879,7 @@ static int dummy_start (struct usb_hcd *hcd)
 #endif
 
        /* FIXME 'urbs' should be a per-device thing, maybe in usbcore */
-       device_create_file (dummy_dev(dum), &dev_attr_urbs);
-       return 0;
+       return device_create_file (dummy_dev(dum), &dev_attr_urbs);
 }
 
 static void dummy_stop (struct usb_hcd *hcd)