The law specifically says that handguns worn in a belt holster are not considered to be concealed. So does your leg holster qualify? I'm not sure.
I know some people on this forum have carried in a leg holster and haven't been bothered about it. I asked about this once and got the response that a leg holster which was attached to a belt could be considered a belt holster in a roundabout way. I thought that was a pretty good explanation, you can come to your own conclusions.