staging: comedi: use inlines for PCI/USB auto config

Apart from the somewhat unnecessary `BUG_ON()` calls,
`comedi_pci_auto_config()` and `comedi_usb_auto_config()` are just
one-line wrappers around `comedi_auto_config()`, and
`comedi_pci_auto_unconfig()` and `comedi_usb_auto_unconfig()` are just
one-line wrappers around `comedi_auto_unconfig()`.  Convert them to
inline functions and remove the `BUG_ON()` calls.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedidev.h

@@ -517,11 +517,27 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s);
 int comedi_auto_config(struct device *hardware_device,
 		       struct comedi_driver *driver, unsigned long context);
 void comedi_auto_unconfig(struct device *hardware_device);
-int comedi_pci_auto_config(struct pci_dev *pcidev,
-			   struct comedi_driver *driver);
-void comedi_pci_auto_unconfig(struct pci_dev *pcidev);
-int comedi_usb_auto_config(struct usb_interface *intf,
-			   struct comedi_driver *driver);
-void comedi_usb_auto_unconfig(struct usb_interface *intf);
+
+static inline int comedi_pci_auto_config(struct pci_dev *pcidev,
+					 struct comedi_driver *driver)
+{
+	return comedi_auto_config(&pcidev->dev, driver, 0);
+}
+
+static inline void comedi_pci_auto_unconfig(struct pci_dev *pcidev)
+{
+	comedi_auto_unconfig(&pcidev->dev);
+}
+
+static inline int comedi_usb_auto_config(struct usb_interface *intf,
+					 struct comedi_driver *driver)
+{
+	return comedi_auto_config(&intf->dev, driver, 0);
+}
+
+static inline void comedi_usb_auto_unconfig(struct usb_interface *intf)
+{
+	comedi_auto_unconfig(&intf->dev);
+}
 
 #endif /* _COMEDIDEV_H */

drivers/staging/comedi/drivers.c

@@ -930,18 +930,6 @@ void comedi_pci_disable(struct pci_dev *pdev)
 }
 EXPORT_SYMBOL_GPL(comedi_pci_disable);
 
-int comedi_pci_auto_config(struct pci_dev *pcidev, struct comedi_driver *driver)
-{
-	return comedi_auto_config(&pcidev->dev, driver, 0);
-}
-EXPORT_SYMBOL_GPL(comedi_pci_auto_config);
-
-void comedi_pci_auto_unconfig(struct pci_dev *pcidev)
-{
-	comedi_auto_unconfig(&pcidev->dev);
-}
-EXPORT_SYMBOL_GPL(comedi_pci_auto_unconfig);
-
 int comedi_pci_driver_register(struct comedi_driver *comedi_driver,
 		struct pci_driver *pci_driver)
 {
@@ -975,21 +963,6 @@ EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister);
 
 #if IS_ENABLED(CONFIG_USB)
 
-int comedi_usb_auto_config(struct usb_interface *intf,
-			   struct comedi_driver *driver)
-{
-	BUG_ON(intf == NULL);
-	return comedi_auto_config(&intf->dev, driver, 0);
-}
-EXPORT_SYMBOL_GPL(comedi_usb_auto_config);
-
-void comedi_usb_auto_unconfig(struct usb_interface *intf)
-{
-	BUG_ON(intf == NULL);
-	comedi_auto_unconfig(&intf->dev);
-}
-EXPORT_SYMBOL_GPL(comedi_usb_auto_unconfig);
-
 int comedi_usb_driver_register(struct comedi_driver *comedi_driver,
 		struct usb_driver *usb_driver)
 {