http2: Curl_read should not use the single buffer

... as it does for pipelining when we're multiplexing, as we need the
different buffers to store incoming data correctly for all streams.

diff --git a/lib/sendf.c b/lib/sendf.c
index 879e082921c520a8838985eb76fc9796a1398c9e..71b2d6030cb564a67f4e90cf00e265f517680827 100644 (file)
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -551,7 +551,8 @@ CURLcode Curl_read(struct connectdata *conn, /* connection data */
   ssize_t nread = 0;
   size_t bytesfromsocket = 0;
   char *buffertofill = NULL;
-  bool pipelining = Curl_multi_pipeline_enabled(conn->data->multi);
+  bool pipelining = Curl_multi_pipeline_enabled(conn->data->multi) &&
+    !conn->bits.multiplex;
 
   /* Set 'num' to 0 or 1, depending on which socket that has been sent here.
      If it is the second socket, we set num to 1. Otherwise to 0. This lets