V4L/DVB: V4L2: soc-camera: export soc-camera bus type for notifications

Signed-off-by: Guennadi Liakhovetski <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/video/soc_camera.c

···
 	return ret;
 }
 
-static struct bus_type soc_camera_bus_type = {
+struct bus_type soc_camera_bus_type = {
 	.name		= "soc-camera",
 	.probe		= soc_camera_probe,
 	.remove		= soc_camera_remove,
 	.suspend	= soc_camera_suspend,
 	.resume		= soc_camera_resume,
 };
+EXPORT_SYMBOL_GPL(soc_camera_bus_type);
 
 static struct device_driver ic_drv = {
 	.name	= "camera",

include/media/soc_camera.h

···
 #ifndef SOC_CAMERA_H
 #define SOC_CAMERA_H
 
+#include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/pm.h>
 #include <linux/videodev2.h>
 #include <media/videobuf-core.h>
 #include <media/v4l2-device.h>
+
+extern struct bus_type soc_camera_bus_type;
 
 struct soc_camera_device {
 	struct list_head list;