I was also unable to access any of my shares via Windows after updating to 7.2.2, and I can confirm this resolved the issue. The strange thing is that I only had one share with this problem, but I could not access any of the shares. I guess this issue is preventing SMB from starting correctly and so none of the shares were accessible. The best thing to do is to go in /config/shares, and check if there are any share config files with name that do not match the configured value, and then proceed as Jorge recommended for all of the affected shares. After fixing the issue with the config files, an array restart was required to bring everything back to functionality.