shared client: Make responses channel buffered

Responses channel must be buffered to remove a deadlock scenario when we
exit and the receive loop needs to send a response right after we have
completed draining.

Signed-off-by: Jarno Rajahalme <jarno@isovalent.com>

shared_client.go

@@ -142,7 +142,9 @@ func (c *SharedClient) ExchangeShared(m *Msg) (r *Msg, rtt time.Duration, err er
 func handler(wg *sync.WaitGroup, client *Client, conn *Conn, requests chan request) {
 	defer wg.Done()
 
-	responses := make(chan sharedClientResponse)
+	// Responses channel must be buffered to remove a deadlock scenario when we exit and the
+	// receive loop needs to send a response right after we have completed draining.
+	responses := make(chan sharedClientResponse, 1)
 
 	// receiverTrigger is used to wake up the receive loop after request(s) have been sent. It
 	// must be buffered to be able to send a trigger while the receive loop is not yet ready to