[PATCH] media-device.h: fix compiler warning

[Hans Verkuil <hverkuil@xs4all.nl>]

Fix these compiler warnings:

media-git/include/media/media-device.h: In function 'media_device_pci_init':
media-git/include/media/media-device.h:610:9: warning: 'return' with a value, in function returning void
  return NULL;
         ^
media-git/include/media/media-device.h: In function '__media_device_usb_init':
media-git/include/media/media-device.h:618:9: warning: 'return' with a value, in function returning void
  return NULL;
         ^

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

diff --git a/include/media/media-device.h b/include/media/media-device.h
index 49dda6c..44012fe 100644
--- a/include/media/media-device.h
+++ b/include/media/media-device.h
@@ -607,7 +607,6 @@ static inline void media_device_pci_init(struct media_device *mdev,
 					 struct pci_dev *pci_dev,
 					 char *name)
 {
-	return NULL;
 }

 static inline void __media_device_usb_init(struct media_device *mdev,
@@ -615,7 +614,6 @@ static inline void __media_device_usb_init(struct media_device *mdev,
 					   char *board_name,
 					   char *driver_name)
 {
-	return NULL;
 }

 #endif /* CONFIG_MEDIA_CONTROLLER */