DVB: tda10086: fix DiSEqC message length

DVB: tda10086: fix DiSEqC message length

Setting the message length to zero means to send one byte, so you need a
subtraction instead of an addition.

(cherry picked from commit d420cb44693b8370cbf06c3e31b4b5dec66c9f86)

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/media/dvb/frontends/tda10086.c b/drivers/media/dvb/frontends/tda10086.c
index 4c27a2d90a38cf1e3f763a6535bd2d1113775720..ccc429cbbad0421be88269d3fc30f0b258941485 100644 (file)
--- a/drivers/media/dvb/frontends/tda10086.c
+++ b/drivers/media/dvb/frontends/tda10086.c
@@ -212,7 +212,7 @@ static int tda10086_send_master_cmd (struct dvb_frontend* fe,
        for(i=0; i< cmd->msg_len; i++) {
                tda10086_write_byte(state, 0x48+i, cmd->msg[i]);
        }
-       tda10086_write_byte(state, 0x36, 0x08 | ((cmd->msg_len + 1) << 4));
+       tda10086_write_byte(state, 0x36, 0x08 | ((cmd->msg_len - 1) << 4));
 
        tda10086_diseqc_wait(state);