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-rw-r--r--lib/http2.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/http2.c b/lib/http2.c
index 25d74c1a1..770ebdab5 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -202,8 +202,11 @@ static bool http2_connisdead(struct connectdata *conn)
only "protocol frames" */
CURLcode result;
struct http_conn *httpc = &conn->proto.httpc;
- ssize_t nread = ((Curl_recv *)httpc->recv_underlying)(
- conn, FIRSTSOCKET, httpc->inbuf, H2_BUFSIZE, &result);
+ ssize_t nread = -1;
+ if(httpc->recv_underlying)
+ /* if called "too early", this pointer isn't setup yet! */
+ nread = ((Curl_recv *)httpc->recv_underlying)(
+ conn, FIRSTSOCKET, httpc->inbuf, H2_BUFSIZE, &result);
if(nread != -1) {
infof(conn->data,
"%d bytes stray data read before trying h2 connection\n",