From 464d49360a02c6b378ebaf5ef38f4bb4536dd5ee Mon Sep 17 00:00:00 2001
From: Bert Vermeulen <bert@biot.com>
Date: Mon, 27 Jan 2014 21:19:41 +0100
Subject: [PATCH] rigol-ds: Deal with dev_close() getting called multiple
 times.

---
 hardware/rigol-ds/api.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hardware/rigol-ds/api.c b/hardware/rigol-ds/api.c
index 76c2efc7..f61d58ca 100644
--- a/hardware/rigol-ds/api.c
+++ b/hardware/rigol-ds/api.c
@@ -482,6 +482,9 @@ static int dev_close(struct sr_dev_inst *sdi)
 	struct sr_scpi_dev_inst *scpi;
 	struct dev_context *devc;
 
+	if (sdi->status != SR_ST_INACTIVE)
+		return SR_OK;
+
 	scpi = sdi->conn;
 	devc = sdi->priv;