how do i check if a redis client is none value?

[kolinfluence]

need to check if redis.Client == nil <- how do i get this done, with ref to the code below

type Cpool struct {
	mu sync.Mutex
	cm map[uint16]redis.Client
}

func (item Cpool) NewInstance() Cpool {
	item.cm = make(map[uint16]redis.Client)
	return item
}

func (p *Cpool) Get(addrIndex uint16) (c redis.Client, err error) {
	p.mu.Lock()
	addr := string(CredisAddrCache.Get(nil, Uint16ToBytes(addrIndex)))

	if c = p.cm[addrIndex]; c == nil { **//having problem here with c == nil (mismatched types redis.Client and untyped nil)**
		cRedis = redis.NewClient(&redis.Options{
			Addr: addr,
		})
	}
	p.mu.Unlock()
	return
}

[vmihailenco]

Probably should be map[uint16]*redis.Client