From e8d3d6c84378481b5c0b53236e2fb09288e211b1 Mon Sep 17 00:00:00 2001
From: Bert Vermeulen <bert@biot.com>
Date: Sun, 29 Jul 2012 03:01:57 +0200
Subject: [PATCH] sr: properly initialize and check on device instance driver
 field

---
 device.c  | 1 +
 session.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/device.c b/device.c
index 53333114..e9f6c7bc 100644
--- a/device.c
+++ b/device.c
@@ -194,6 +194,7 @@ SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
 		return NULL;
 	}
 
+	sdi->driver = NULL;
 	sdi->index = index;
 	sdi->status = status;
 	sdi->inst_type = -1;
diff --git a/session.c b/session.c
index e4b8c1c2..23e4e495 100644
--- a/session.c
+++ b/session.c
@@ -88,7 +88,7 @@ SR_API int sr_session_destroy(void)
 
 static void sr_dev_close(struct sr_dev_inst *sdi)
 {
-	if (sdi->driver->dev_close)
+	if (sdi->driver && sdi->driver->dev_close)
 		sdi->driver->dev_close(sdi);
 }