make hdpvr build without CONFIG_I2C

Signed-off-by: Janne Grunau <j@jannau.net>
---
diff --git a/drivers/media/video/hdpvr/Makefile b/drivers/media/video/hdpvr/Makefile
index 79ad2e1..145163b 100644
--- a/drivers/media/video/hdpvr/Makefile
+++ b/drivers/media/video/hdpvr/Makefile
@@ -1,4 +1,6 @@
-hdpvr-objs	:= hdpvr-control.o hdpvr-core.o hdpvr-i2c.o hdpvr-video.o
+hdpvr-objs := hdpvr-control.o hdpvr-core.o hdpvr-video.o
+
+hdpvr-$(CONFIG_I2C) += hdpvr-i2c.o
 
 obj-$(CONFIG_VIDEO_HDPVR) += hdpvr.o
 
diff --git a/drivers/media/video/hdpvr/hdpvr-core.c b/drivers/media/video/hdpvr/hdpvr-core.c
index e7300b5..dadb2e7 100644
--- a/drivers/media/video/hdpvr/hdpvr-core.c
+++ b/drivers/media/video/hdpvr/hdpvr-core.c
@@ -21,6 +21,7 @@
 #include <linux/usb.h>
 #include <linux/mutex.h>
 #include <linux/i2c.h>
+#include <linux/autoconf.h>
 
 #include <linux/videodev2.h>
 #include <media/v4l2-dev.h>
@@ -389,12 +390,14 @@ static void hdpvr_disconnect(struct usb_interface *interface)
 	mutex_unlock(&dev->io_mutex);
 
 	/* deregister I2C adapter */
+#ifdef CONFIG_I2C
 	mutex_lock(&dev->i2c_mutex);
 	if (dev->i2c_adapter)
 		i2c_del_adapter(dev->i2c_adapter);
 	kfree(dev->i2c_adapter);
 	dev->i2c_adapter = NULL;
 	mutex_unlock(&dev->i2c_mutex);
+#endif /* CONFIG_I2C */
 
 	atomic_dec(&dev_nr);