diff options
| author | Henrik Kurelid | 2008-12-05 10:00:16 +0100 |
|---|---|---|
| committer | Stefan Richter | 2009-02-24 14:51:28 +0100 |
| commit | 7199e523ef71d24cd8030ea454fca00bb52d58f0 (patch) | |
| tree | 2c705754996affa5e7d3a1d3624d5a0f3539b1ca | |
| parent | 096edfbf167ab277608d26ba8b7978da116a4996 (diff) | |
firedtv: use length_field() of PMT as length
Parsed and used the length_field() of the PMT message instead of using
the length field of the message struct, which does not seem to be filled
correctly by e.g. MythTV.
Signed-off-by: Henrik Kurelid <henrik@kurelid.se>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| -rw-r--r-- | drivers/media/dvb/firesat/firesat-ci.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/media/dvb/firesat/firesat-ci.c b/drivers/media/dvb/firesat/firesat-ci.c index 0deb47eefa10..783ed2000102 100644 --- a/drivers/media/dvb/firesat/firesat-ci.c +++ b/drivers/media/dvb/firesat/firesat-ci.c @@ -127,14 +127,20 @@ static int firesat_ca_pmt(struct firesat *firesat, void *arg) { struct ca_msg *msg = arg; int data_pos; + int data_length; + int i; + + data_pos = 4; + if (msg->msg[3] & 0x80) { + data_length = 0; + for (i = 0; i < (msg->msg[3] & 0x7F); i++) + data_length = (data_length << 8) + msg->msg[data_pos++]; + } else { + data_length = msg->msg[3]; + } - if (msg->msg[3] & 0x80) - data_pos = (msg->msg[4] && 0x7F) + 4; - else - data_pos = 4; - - return avc_ca_pmt(firesat, &msg->msg[data_pos], - msg->length - data_pos) ? -EFAULT : 0; + return avc_ca_pmt(firesat, &msg->msg[data_pos], data_length) ? + -EFAULT : 0; } static int firesat_ca_send_msg(struct firesat *firesat, void *arg) |