altos: ao_fec_prepare using wrong value for input len

[fw/altos] / src / kernel / ao_fec_tx.c

diff --git a/src/kernel/ao_fec_tx.c b/src/kernel/ao_fec_tx.c
index 8c0e7db4f7e51c4f6e7f92d092eacb3c6faa6713..209581b85efd28d2ca193c6e7c6e65686c6dbd25 100644 (file)
--- a/src/kernel/ao_fec_tx.c
+++ b/src/kernel/ao_fec_tx.c
@@ -74,7 +74,7 @@ ao_fec_prepare(const uint8_t *in, uint8_t len, uint8_t *extra)
        extra[i++] = (uint8_t) crc;
 
        /* Append FEC -- 1 byte if odd, two bytes if even */
-       num_fec = 2 - (i & 1);
+       num_fec = 2 - (len & 1);
        while (num_fec--)
                extra[i++] = AO_FEC_TRELLIS_TERMINATOR;
        return i;