From: Bert Vermeulen <redacted>
Date: Thu, 18 Sep 2014 22:21:30 +0000 (+0200)
Subject: session: Don't try to send packets if no session has been set.
X-Git-Tag: libsigrok-0.4.0~991
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=79f92686c620cfd06e3ed9fd1a20087343e4778a

session: Don't try to send packets if no session has been set.

This indicates a bug, but let's not segfault if it happens.
---

diff --git a/src/session.c b/src/session.c
index dc8fd4fb..f81aa332 100644
--- a/src/session.c
+++ b/src/session.c
@@ -676,6 +676,11 @@ SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
 		return SR_ERR_ARG;
 	}
 
+	if (!sdi->session) {
+		sr_err("%s: session was NULL", __func__);
+		return SR_ERR_BUG;
+	}
+
 	for (l = sdi->session->datafeed_callbacks; l; l = l->next) {
 		if (sr_log_loglevel_get() >= SR_LOG_DBG)
 			datafeed_dump(packet);