I just wanted to apply your patch to my Ubuntu 14.04.
It doesn't want to compile, because the include videodev2.h was still not patched.
To make it compile with your manual, I needed to hit the following copy command as well, after patching:
sudo cp include/uapi/linux/videodev2.h /usr/src/linux-headers-`uname -r`/include/uapi/linux/videodev2.h
Is your manual for another version, or should it generally be done my way?