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-rw-r--r--drivers/media/dvb/firesat/firesat-ci.c20
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 0deb47eefa1..783ed200010 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)