Check usb_get_port_path() return value

[libsigrok.git] / src / hardware / hantek-dso / api.c

diff --git a/src/hardware/hantek-dso/api.c b/src/hardware/hantek-dso/api.c
index 48beebfcadce98de9217bb6124a807c7e8881555..abbeb21b207aef72c3795c0a5d162bfd069b4100 100644 (file)
--- a/src/hardware/hantek-dso/api.c
+++ b/src/hardware/hantek-dso/api.c
@@ -315,7 +315,8 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
 
                libusb_get_device_descriptor(devlist[i], &des);
 
-               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;
 
                prof = NULL;
                for (j = 0; dev_profiles[j].orig_vid; j++) {