redonkable/alistair23-linux
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V4L/DVB (4185): Conditionally enable 5 byte diseqc commands

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Signed-off-by: Yeasah Pell <yeasah@schwide.net>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Yeasah Pell 2006-06-21 18:28:13 -03:00 committed by Mauro Carvalho Chehab
parent 9ce8b68fc0
commit ceee526617
1 changed files with 5 additions and 2 deletions
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7
drivers/media/dvb/bt8xx/dst.c
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@ -1466,9 +1466,12 @@ static int dst_set_diseqc(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd
if (state->dst_type != DST_TYPE_IS_SAT)
return 0;
if (cmd->msg_len == 0 || cmd->msg_len > 4)
if (cmd->msg_len > 0 && cmd->msg_len < 5)
memcpy(&paket[3], cmd->msg, cmd->msg_len);
else if (cmd->msg_len == 5 && state->dst_hw_cap & DST_TYPE_HAS_DISEQC5)
memcpy(&paket[2], cmd->msg, cmd->msg_len);
else
return -EINVAL;
memcpy(&paket[3], cmd->msg, cmd->msg_len);
paket[7] = dst_check_sum(&paket[0], 7);
dst_command(state, paket, 8);
return 0;