MINOR: quic: fix handling of out-of-order received STREAM frames

The recent changes was not complete.
  d1c76f24fdf1cfb85e574cb1ef0c773b74bee32a
  MINOR: quic: do not modify offset node if quic_rx_strm_frm in tree

The frame length and data pointer should incremented after the data
copy. A BUG_ON statement has been added to detect an incorrect decrement
operaiton.
1 file changed