Stupid Git question

Hi,

I have a stupid git question. We are doing embedded development using git for our kernel mods.

git clone git+ssh://git.example.com/git/kernel/mh.git kernel

git checkout -b fm-modulator

edit/add/commit

git checkout origin

git pull . fm-modulator

git push origin

Everything up-to-date  <<< It pushes nothing

My problem is that I don't understand why when I tell git to push the changes to our repository it says everything is up-to-date. It clearly hasn't pushed it yet to our server.

My git layout is like this:

A single repository representing our Monahans kernel "mh.git" hosted on a remote server accessed by git+ssh.

Four developers work on the kernel and drivers for the target platform.

Any suggestions much appreciated. My prior experience is with StarTeam and more recently Subversion.

Thanks,

Sean