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path: root/drivers/usb/gadget/goku_udc.c
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Diffstat (limited to 'drivers/usb/gadget/goku_udc.c')
-rw-r--r--drivers/usb/gadget/goku_udc.c35
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index 1088d08c7ed8..48a760220baf 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1343,14 +1343,15 @@ static struct goku_udc *the_controller;
* disconnect is reported. then a host may connect again, or
* the driver might get unbound.
*/
-int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
+ int (*bind)(struct usb_gadget *))
{
struct goku_udc *dev = the_controller;
int retval;
if (!driver
|| driver->speed < USB_SPEED_FULL
- || !driver->bind
+ || !bind
|| !driver->disconnect
|| !driver->setup)
return -EINVAL;
@@ -1363,7 +1364,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
driver->driver.bus = NULL;
dev->driver = driver;
dev->gadget.dev.driver = &driver->driver;
- retval = driver->bind(&dev->gadget);
+ retval = bind(&dev->gadget);
if (retval) {
DBG(dev, "bind to driver %s --> error %d\n",
driver->driver.name, retval);
@@ -1380,7 +1381,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
DBG(dev, "registered gadget driver '%s'\n", driver->driver.name);
return 0;
}
-EXPORT_SYMBOL(usb_gadget_register_driver);
+EXPORT_SYMBOL(usb_gadget_probe_driver);
static void
stop_activity(struct goku_udc *dev, struct usb_gadget_driver *driver)
@@ -1744,7 +1745,8 @@ static void goku_remove(struct pci_dev *pdev)
pci_resource_len (pdev, 0));
if (dev->enabled)
pci_disable_device(pdev);
- device_unregister(&dev->gadget.dev);
+ if (dev->registered)
+ device_unregister(&dev->gadget.dev);
pci_set_drvdata(pdev, NULL);
dev->regs = NULL;
@@ -1774,7 +1776,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (!pdev->irq) {
printk(KERN_ERR "Check PCI %s IRQ setup!\n", pci_name(pdev));
retval = -ENODEV;
- goto done;
+ goto err;
}
/* alloc, and start init */
@@ -1782,7 +1784,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (dev == NULL){
pr_debug("enomem %s\n", pci_name(pdev));
retval = -ENOMEM;
- goto done;
+ goto err;
}
spin_lock_init(&dev->lock);
@@ -1800,7 +1802,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
retval = pci_enable_device(pdev);
if (retval < 0) {
DBG(dev, "can't enable, %d\n", retval);
- goto done;
+ goto err;
}
dev->enabled = 1;
@@ -1809,7 +1811,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (!request_mem_region(resource, len, driver_name)) {
DBG(dev, "controller already in use\n");
retval = -EBUSY;
- goto done;
+ goto err;
}
dev->got_region = 1;
@@ -1817,7 +1819,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (base == NULL) {
DBG(dev, "can't map memory\n");
retval = -EFAULT;
- goto done;
+ goto err;
}
dev->regs = (struct goku_udc_regs __iomem *) base;
@@ -1833,7 +1835,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
driver_name, dev) != 0) {
DBG(dev, "request interrupt %d failed\n", pdev->irq);
retval = -EBUSY;
- goto done;
+ goto err;
}
dev->got_irq = 1;
if (use_dma)
@@ -1844,13 +1846,16 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev);
#endif
- /* done */
the_controller = dev;
retval = device_register(&dev->gadget.dev);
- if (retval == 0)
- return 0;
+ if (retval) {
+ put_device(&dev->gadget.dev);
+ goto err;
+ }
+ dev->registered = 1;
+ return 0;
-done:
+err:
if (dev)
goku_remove (pdev);
return retval;