Like virtually all hydraulic clutch linkages, your's is self adjusting and should leave very little free play at the pedal when working correctly.
That said, it's possible that incorrect parts, a clogged clutch master cylinder, a collapsed hydraulic hose or mechanical binding could cause the mechanism to over-adjust. Get under the car (or remove the trans tunnel) and see if there's a small amount of free play in the rod (I'm speaking of the rod that connects the hydraulic slave cylinder to the throwout arm on the bell housing of the trans). Even a small amount of free play probably indicates that everything is OK). If the rod feels tightly trapped between the cylinder and thowout arm, you'll have to look further to solve the problem.