Iterator never returns warning with coroutines

So I have the code below using a coroutine to fire a laser for a space shooter game continuously by hold pressing the fire key and I have it stopping the coroutine when the player stops pressing on the fire key. The code works perfectly fine but I get this one warning that's bugging me so I was wondering if anybody knew anyway to get rid of the warning.

Code (CSharp):

1.     private IEnumerator FireLaserContinuously() {
2.         while (true) {
3.             var laser = Instantiate(laserPrefab, transform.position, Quaternion.identity);
4.             laser.GetComponent<Rigidbody2D>().velocity = new Vector2(0, laserSpeed);
5.             yield return new WaitForSeconds(laserFiringSpeed);
6.         }
7.     } // Iterator never returns
8.     private void FireLaser() {
9.         if (Input.GetButtonDown("Fire1")) {
10.             laserFiringCoroutine = StartCoroutine(FireLaserContinuously());
11.         } else if (Input.GetButtonUp("Fire1")) {
12.             StopCoroutine(laserFiringCoroutine);
13.         }
14.     }
15.     private void Update() {
16.         FireLaser();
17.     }

If you look above you'll see I put a comment where I see the warning in my IDE. I hope all this information helps!

 

Figured it out:

Code (CSharp):

1. private const float LaserFiringCooldown = 0.1f;
2. private bool _canShootLaser = true;
3. private IEnumerator FireLaserCooldown() {
4.         yield return new WaitForSeconds(LaserFiringCooldown);
5.         _canShootLaser = true;
6.     }
7.     private void FireLaser() {
8.         if (!Input.GetButton("Fire1") || !_canShootLaser) return;
9.         var laser = Instantiate(laserPrefab, transform.position, Quaternion.identity);
10.         laser.GetComponent<Rigidbody2D>().velocity = new Vector2(0, laserSpeed);
11.         _canShootLaser = false;
12.         StartCoroutine(FireLaserCooldown());
13.     }
14.     private void Update() {
15.         FireLaser();
16.     }

 

Was it a matter of reordering the ' yield return' ?