diff --git a/cups/http-addrlist.c b/cups/http-addrlist.c
index 81874313d7..436e21f8a2 100644
--- a/cups/http-addrlist.c
+++ b/cups/http-addrlist.c
@@ -302,9 +302,12 @@ httpAddrConnect2(
 	  // check the SO_ERROR value and ignore the POLLHUP if there is no error or
 	  // the error is EINPROGRESS.
 
-	  int            sres, serr;
-	  socklen_t      slen = sizeof(serr);
+	  int	    sres,		 /* Return value from getsockopt() - 0, or -1 if error */
+		    serr;		 /* Option SO_ERROR value */
+	  socklen_t slen = sizeof(serr); /* Option value size */
+
 	  sres = getsockopt(fds[i], SOL_SOCKET, SO_ERROR, &serr, &slen);
+
 	  if (sres || serr)
 	  {
 	    pfds[i].revents |= POLLERR;