I am definitely low on caffeine today... I did not only read that you were running an upgrade, I actually helped you for at least that fix (ie "weak modules)... 
Looks like it's not needed anyway... I could be wrong but I guess DAHDI is now started by the fwconsole script...
Keep us posted to see if it continues to work correctly or starts misbehaving at one point...
When you have a chance try a few reboots (including from being powered off) to make sure things are always OK after without needing a restart..
Good luck and have a nice day!
Nick