Trivial update to some comments.

net/tcp/tcp_send_buffered.c

@@ -1206,11 +1206,6 @@ ssize_t psock_tcp_send(FAR struct socket *psock, FAR const void *buf,
       goto errout;
     }
 
-  /* If net_lockedwait failed, then we were probably reawakened by a signal.
-   * In this case, net_lockedwait will have returned negated errno
-   * appropriately.
-   */
-
   if (ret < 0)
     {
       goto errout;

net/tcp/tcp_wrbuffer.c

@@ -142,7 +142,7 @@ FAR struct tcp_wrbuffer_s *tcp_wrbuffer_alloc(void)
   /* We need to allocate two things:  (1) A write buffer structure and (2)
    * at least one I/O buffer to start the chain.
    *
-   * Allocate the write buffer structure first then the IOBG.  In order to
+   * Allocate the write buffer structure first then the IOB.  In order to
    * avoid deadlocks, we will need to free the IOB first, then the write
    * buffer
    */