Camera Gets Stuck At Corners

I've written code for a camera that turns itself from one point to the other in a loop, switching its direction when it hits the corners. The problem I'm having is that every now and then the camera gets jammed at a corners, and spasms out, it can't decide if it should get left or right.

function camerapatrol() {


if (transform.rotation.eulerAngles.y < ((axis - viewrange) ) || transform.rotation.eulerAngles.y > ((axis + viewrange) )){
direction = (direction*-1);

}

transform.Rotate (0, (50*Time.deltaTime)*direction, 0);



}

Does anyone have a solution to this error by any chance? I would really appreciate the help.