X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fcommon%2Fscpi_vxi.c;h=639b3b566ec8af7e522057f5d0d9c7f5cd198a60;hb=811d6255bbed786183616867196029b639fd7891;hp=4d713dceb9446f9fe6ff0dd4669d88072e645ab8;hpb=f754c1469188a5e1a82c98532cb21b334530a91a;p=libsigrok.git

diff --git a/hardware/common/scpi_vxi.c b/hardware/common/scpi_vxi.c
index 4d713dce..639b3b56 100644
--- a/hardware/common/scpi_vxi.c
+++ b/hardware/common/scpi_vxi.c
@@ -21,6 +21,8 @@
  */
 
 #include <rpc/rpc.h>
+#include <string.h>
+
 #include "vxi.h"
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
@@ -37,11 +39,12 @@ struct scpi_vxi {
 	unsigned int read_complete;
 };
 
-static int scpi_vxi_dev_inst_new(void *priv, const char *resource,
-		char **params, const char *serialcomm)
+static int scpi_vxi_dev_inst_new(void *priv, struct drv_context *drvc,
+		const char *resource, char **params, const char *serialcomm)
 {
 	struct scpi_vxi *vxi = priv;
 
+	(void)drvc;
 	(void)resource;
 	(void)serialcomm;
 
@@ -89,7 +92,7 @@ static int scpi_vxi_open(void *priv)
 }
 
 static int scpi_vxi_source_add(void *priv, int events, int timeout,
-			sr_receive_data_callback_t cb, void *cb_data)
+			sr_receive_data_callback cb, void *cb_data)
 {
 	(void)priv;
 
@@ -196,12 +199,16 @@ static int scpi_vxi_close(void *priv)
 	struct scpi_vxi *vxi = priv;
 	Device_Error *dev_error;
 
+	if (!vxi->client)
+		return SR_ERR;
+
 	if (!(dev_error = destroy_link_1(&vxi->link, vxi->client))) {
 		sr_err("Link destruction failed for %s", vxi->address);
 		return SR_ERR;
 	}
 
 	clnt_destroy(vxi->client);
+	vxi->client = NULL;
 
 	return SR_OK;
 }