X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fkingst-la2016%2Fprotocol.c;fp=src%2Fhardware%2Fkingst-la2016%2Fprotocol.c;h=596b085c49b4d04c6de45d19a320470ab335be40;hb=462a2f0afbbd80007d6516850f49f4d7fabc62fc;hp=8f08337ad7fa570663d35485c63b23272c7d5350;hpb=0fbb464bdf0951228d4430794263bb48bc668821;p=libsigrok.git

diff --git a/src/hardware/kingst-la2016/protocol.c b/src/hardware/kingst-la2016/protocol.c
index 8f08337a..596b085c 100644
--- a/src/hardware/kingst-la2016/protocol.c
+++ b/src/hardware/kingst-la2016/protocol.c
@@ -1515,15 +1515,22 @@ static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer)
 {
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
-	gboolean was_cancelled;
+	gboolean was_cancelled, device_gone;
 	int ret;
 
 	sdi = transfer->user_data;
 	devc = sdi->priv;
 
 	was_cancelled = transfer->status == LIBUSB_TRANSFER_CANCELLED;
+	device_gone = transfer->status == LIBUSB_TRANSFER_NO_DEVICE;
 	sr_dbg("receive_transfer(): status %s received %d bytes.",
 		libusb_error_name(transfer->status), transfer->actual_length);
+	if (device_gone) {
+		sr_warn("Lost communication to USB device.");
+		devc->download_finished = TRUE;
+		return;
+	}
+
 	/*
 	 * Implementation detail: A USB transfer timeout is not fatal
 	 * here. We just process whatever was received, empty input is