Whether it will be trouble would depend on whether you acquired permanent residency through sponsoring employer without intention of working for the company once green card was approved.
This response is general in nature and cannot be construed as legal advice, given that not enough facts are known. Any comments offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship. If you would like additional information based on this response, please contact my office at 510 657 7665 or 415 902 0832 to schedule a consultation.
There does not appear from this set of facts, to be any basis to revoke your permanent resident status.
The above is intended only as general information, and does not constitute legal advice. You must speak with an attorney to discuss your individual case.