X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Ffx2lafw%2Fprotocol.c;h=ec2b5c011b27ab94add03bfde6e211c2f76ef3f9;hb=bde6a99b33fd520152c05183f5b80cff63d75675;hp=fc6fd3315a2c2ab6f76a3612e7e30db1362888f0;hpb=efad7cccec8ab00043939b36de950ba2ced15f85;p=libsigrok.git

diff --git a/src/hardware/fx2lafw/protocol.c b/src/hardware/fx2lafw/protocol.c
index fc6fd331..ec2b5c01 100644
--- a/src/hardware/fx2lafw/protocol.c
+++ b/src/hardware/fx2lafw/protocol.c
@@ -174,7 +174,9 @@ SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
 			/*
 			 * 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;