Discriminate between libusb transfer errors and regular libusb errors and make sure to capture them all.
diff --git a/usbutils.c b/usbutils.c
index 02d4024..227dad2 100644
--- a/usbutils.c
+++ b/usbutils.c
@@ -2341,6 +2341,9 @@ static void LIBUSB_CALL transfer_callback(struct libusb_transfer *transfer)
static int usb_transfer_toerr(int ret)
{
+ if (ret <= 0)
+ return ret;
+
switch (ret) {
default:
case LIBUSB_TRANSFER_COMPLETED:
@@ -2456,15 +2459,18 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle, int intinfo,
errn = errno;
if (!err)
err = callback_wait(&ut, transferred, callback_timeout);
+ else
+ err = usb_transfer_toerr(err);
complete_usb_transfer(&ut);
STATS_TIMEVAL(&tv_finish);
USB_STATS(cgpu, &tv_start, &tv_finish, err, mode, cmd, seq, timeout);
- if (err < 0)
+ if (err < 0) {
applog(LOG_DEBUG, "%s%i: %s (amt=%d err=%d ern=%d)",
cgpu->drv->name, cgpu->device_id,
usb_cmdname(cmd), *transferred, err, errn);
+ }
if (err == LIBUSB_ERROR_PIPE) {
int retries = 0;