fix error with double HID response

2018-05-12 12:23:14 -04:00
parent f0768468f0
commit a382ab5e42
2 changed files with 2 additions and 2 deletions
--- a/ctaphid.c
+++ b/ctaphid.c
@@ -185,7 +185,7 @@ static int buffer_len()
 static void ctaphid_write(CTAPHID_WRITE_BUFFER * wb, void * _data, int len)
 {
    uint8_t * data = (uint8_t *)_data;
-    if (len == 0)
+    if (_data == NULL)
    {
        if (wb->offset == 0 && wb->bytes_written == 0)
        {