X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fsession.c;h=b84a41a5c2cf73f79a191c99ac613ef02ebe51cb;hb=129d5bc961fb3589a08b391092d9a7e5eef522f6;hp=504af479d4b2d3cce6b0a34de39993dee172bfd3;hpb=7efe889e7aa5849ae3e4d09b8f50779992502b79;p=libsigrok.git

diff --git a/src/session.c b/src/session.c
index 504af479..b84a41a5 100644
--- a/src/session.c
+++ b/src/session.c
@@ -67,7 +67,7 @@ struct datafeed_callback {
  *                    is undefined and should not be used. Must not be NULL.
  *
  * @retval SR_OK Success.
- * @retval SR_ERR_BUG A session exists already.
+ * @retval SR_ERR_ARG Invalid argument.
  *
  * @since 0.4.0
  */
@@ -75,6 +75,9 @@ SR_API int sr_session_new(struct sr_session **new_session)
 {
 	struct sr_session *session;
 
+	if (!new_session)
+		return SR_ERR_ARG;
+
 	session = g_malloc0(sizeof(struct sr_session));
 
 	session->source_timeout = -1;
@@ -186,8 +189,6 @@ SR_API int sr_session_dev_add(struct sr_session *session,
 
 	/* If sdi->driver is NULL, this is a virtual device. */
 	if (!sdi->driver) {
-		sr_dbg("%s: sdi->driver was NULL, this seems to be "
-		       "a virtual device; continuing", __func__);
 		/* Just add the device, don't run dev_open(). */
 		session->devs = g_slist_append(session->devs, (gpointer)sdi);
 		sdi->session = session;