From c386a8851e7e94179532213097d68b7288c5f3ce Mon Sep 17 00:00:00 2001
From: Christopher Faulet <cfaulet@haproxy.com>
Date: Tue, 4 Dec 2018 16:06:28 +0100
Subject: [PATCH] MINOR: mux-h1: Make sure to return 1 in h1_recv() when needed

In h1_recv(), return 1 if we have data available, or if h1_recv_allowed()
failed, to be sure h1_process() is called. Also don't subscribe if our buffer
is full.
---
 src/mux_h1.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mux_h1.c b/src/mux_h1.c
index 494c56328..533187691 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -1467,7 +1467,7 @@ static int h1_recv(struct h1c *h1c)
 	int rcvd = 0;
 
 	if (h1c->wait_event.wait_reason & SUB_CAN_RECV)
-		return 0;
+		return (b_data(&h1c->ibuf));
 
 	if (!h1_recv_allowed(h1c)) {
 		rcvd = 1;
@@ -1498,7 +1498,7 @@ static int h1_recv(struct h1c *h1c)
 		}
 	}
 
-	if (h1_recv_allowed(h1c))
+	if (h1_recv_allowed(h1c) && (b_data(&h1c->ibuf) < b_size(&h1c->ibuf)))
 		conn->xprt->subscribe(conn, SUB_CAN_RECV, &h1c->wait_event);
 	else
 		rcvd = 1;