X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fdreamsourcelab-dslogic%2Fprotocol.c;h=0f171518125c5aa320ba0791de3a875df182f8d9;hb=6c1a76d1263403f908ac31271a4fd01792488545;hp=2096073c1000c3c866d35133995d4d10498f89f2;hpb=7bbe5a2b6a3cea7bc5b59ca3c34ed4f6fcf8c3b1;p=libsigrok.git

diff --git a/src/hardware/dreamsourcelab-dslogic/protocol.c b/src/hardware/dreamsourcelab-dslogic/protocol.c
index 2096073c..0f171518 100644
--- a/src/hardware/dreamsourcelab-dslogic/protocol.c
+++ b/src/hardware/dreamsourcelab-dslogic/protocol.c
@@ -568,7 +568,9 @@ SR_PRIV int dslogic_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
 		if ((sdi->status == SR_ST_INITIALIZING) ||
 				(sdi->status == SR_ST_INACTIVE)) {
 			/* Check device by its physical USB bus/port address. */
-			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;
+
 			if (strcmp(sdi->connection_id, connection_id))
 				/* This is not the one. */
 				continue;