X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fdevice.c;h=519a1726399b060719df6c43f2432900266e3273;hb=6c1a76d1263403f908ac31271a4fd01792488545;hp=ae8f3b8ce5a540f6697c89ba2454dd11d2a8cb56;hpb=f778bf02eaf0d7fa7ccb91a0da8a68233f1fb79a;p=libsigrok.git

diff --git a/src/device.c b/src/device.c
index ae8f3b8c..519a1726 100644
--- a/src/device.c
+++ b/src/device.c
@@ -610,8 +610,6 @@ SR_API int sr_dev_open(struct sr_dev_inst *sdi)
  */
 SR_API int sr_dev_close(struct sr_dev_inst *sdi)
 {
-	int ret;
-
 	if (!sdi || !sdi->driver || !sdi->driver->dev_close)
 		return SR_ERR_ARG;
 
@@ -625,9 +623,7 @@ SR_API int sr_dev_close(struct sr_dev_inst *sdi)
 
 	sr_dbg("%s: Closing device instance.", sdi->driver->name);
 
-	ret = sdi->driver->dev_close(sdi);
-
-	return ret;
+	return sdi->driver->dev_close(sdi);
 }
 
 /**
@@ -757,7 +753,9 @@ SR_API const char *sr_dev_inst_connid_get(const struct sr_dev_inst *sdi)
 			if (b != usb->bus || a != usb->address)
 				continue;
 
-			usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
+			if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0)
+				continue;
+
 			((struct sr_dev_inst *)sdi)->connection_id = g_strdup(connection_id);
 			break;
 		}