BUG/MINOR: mux-h1: Fix conditions on pipe in some COUNT_IF()

The previous commit contains a bug in some COUNT_IF() relying on the pipe
inside the IOBUF. We must take care to have a pipe before checking its size.

No backport needed.

diff --git a/src/mux_h1.c b/src/mux_h1.c
index ccdf3cdfa2194270a6d2f993e3d8d4302406afcf..c87849d0f69ef8b9f896603178660937ff9ffdb7 100644 (file)
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -4909,7 +4909,7 @@ static size_t h1_done_ff(struct stconn *sc)
                         */
                        h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
                }
-               COUNT_IF(b_data(&h1c->obuf) || sd->iobuf.pipe->data, "connection error (done_ff) with pending output data");
+               COUNT_IF(b_data(&h1c->obuf) || (sd->iobuf.pipe && sd->iobuf.pipe->data), "connection error (done_ff) with pending output data");
                se_fl_set_error(h1s->sd);
                if (sd->iobuf.pipe) {
                        put_pipe(sd->iobuf.pipe);
@@ -5089,7 +5089,7 @@ static int h1_fastfwd(struct stconn *sc, unsigned int count, unsigned int flags)
                se_fl_set(h1s->sd, SE_FL_ERROR);
                h1c->flags = (h1c->flags & ~H1C_F_WANT_FASTFWD) | H1C_F_ERROR;
                COUNT_IF(h1m->state < H1_MSG_DONE, "H1C ERROR before the end of the message");
-               COUNT_IF(b_data(&h1c->obuf) || h1s->sd->iobuf.pipe->data, "connection error (fastfwd) with pending output data");
+               COUNT_IF(b_data(&h1c->obuf) || (h1s->sd->iobuf.pipe && h1s->sd->iobuf.pipe->data), "connection error (fastfwd) with pending output data");
                TRACE_DEVEL("connection error", H1_EV_STRM_ERR|H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
        }
 
@@ -5171,7 +5171,7 @@ static int h1_resume_fastfwd(struct stconn *sc, unsigned int flags)
                        h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
                }
                se_fl_set_error(h1s->sd);
-               COUNT_IF(b_data(&h1c->obuf) || h1s->sd->iobuf.pipe->data, "connection error (resume_ff) with pending output data");
+               COUNT_IF(b_data(&h1c->obuf) || (h1s->sd->iobuf.pipe && h1s->sd->iobuf.pipe->data), "connection error (resume_ff) with pending output data");
                if (h1s->sd->iobuf.pipe) {
                        put_pipe(h1s->sd->iobuf.pipe);
                        h1s->sd->iobuf.pipe = NULL;