I hope the next point release gets a fix for this, but in the meantime, this page has the solution for next time I need to update the kernel:
The technique I use is to execute the following three lines at the command line, and then reboot:
sudo add-apt-repository ppa:ubuntu-audio-dev/ppa sudo apt-get update sudo apt-get install linux-alsa-driver-modules-$(uname -r)
Don't forget to reboot!
Note that you may hit the following error, which means that the package has not been created for the newer version of the kernel. The solution is usually to wait a few weeks for the package to be created and try again.
Couldn't find package linux-alsa-driver-modules-2.6.32-37-generic