libusb1_common, ftdi: clarify libusb_open error message

[openocd.git] / src / jtag / drivers / libusb1_common.c

diff --git a/src/jtag/drivers/libusb1_common.c b/src/jtag/drivers/libusb1_common.c
index 74b8144d2a2d022e76b8939109b4eb1b872519b3..c4478cb9b1ac99b863b91df87b2e9d017699a73c 100644 (file)
--- a/src/jtag/drivers/libusb1_common.c
+++ b/src/jtag/drivers/libusb1_common.c
@@ -62,8 +62,11 @@ int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
                /** Free the device list **/
                libusb_free_device_list(devs, 1);
 
-               if (errCode < 0)
+               if (errCode) {
+                       LOG_ERROR("libusb_open() failed with %s",
+                                 libusb_error_name(errCode));
                        return errCode;
+               }
                return 0;
        }
        return -ENODEV;