I expect that the hardware will have limited this to 16, but just in case it hasn't, check for this corner case. Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> --- diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c index ce9a9d922f11..0a30e7acdc10 100644 --- a/drivers/media/cec/platform/s5p/s5p_cec.c +++ b/drivers/media/cec/platform/s5p/s5p_cec.c @@ -115,6 +115,8 @@ static irqreturn_t s5p_cec_irq_handler(int irq, void *priv) dev_dbg(cec->dev, "Buffer overrun (worker did not process previous message)\n"); cec->rx = STATE_BUSY; cec->msg.len = status >> 24; + if (cec->msg.len > CEC_MAX_MSG_SIZE) + cec->msg.len = CEC_MAX_MSG_SIZE; cec->msg.rx_status = CEC_RX_STATUS_OK; s5p_cec_get_rx_buf(cec, cec->msg.len, cec->msg.msg);
