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authorHans Verkuil <hansverk@cisco.com>2016-08-24 05:36:53 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-09-09 10:38:18 -0300
commita179b69359feb26ddb148bb6a2c0c53a8d1dc5be (patch)
tree982a92c875aa6264c1ec0d27b72318c7456bb51a /drivers
parent19d6837a52f1683cf448265952d559a44a7df924 (diff)
downloadlinux-4.8.y-a179b69359feb26ddb148bb6a2c0c53a8d1dc5be.tar.gz
[media] cec: don't Feature Abort broadcast msgs when unregistered
If the adapter is configured as 'Unregistered', then cec_receive_notify incorrectly thinks that broadcast messages are directed messages. The destination for broadcast messages is 0xf, and the logical address assigned to Unregistered devices is also 0xf and the logic didn't handle that correctly. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/media/cec/cec-adap.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/staging/media/cec/cec-adap.c b/drivers/staging/media/cec/cec-adap.c
index e980ac9c927925..946986f3ac0d75 100644
--- a/drivers/staging/media/cec/cec-adap.c
+++ b/drivers/staging/media/cec/cec-adap.c
@@ -1409,7 +1409,6 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
u8 init_laddr = cec_msg_initiator(msg);
u8 devtype = cec_log_addr2dev(adap, dest_laddr);
int la_idx = cec_log_addr2idx(adap, dest_laddr);
- bool is_directed = la_idx >= 0;
bool from_unregistered = init_laddr == 0xf;
struct cec_msg tx_cec_msg = { };
@@ -1571,7 +1570,7 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
* Unprocessed messages are aborted if userspace isn't doing
* any processing either.
*/
- if (is_directed && !is_reply && !adap->follower_cnt &&
+ if (!is_broadcast && !is_reply && !adap->follower_cnt &&
!adap->cec_follower && msg->msg[1] != CEC_MSG_FEATURE_ABORT)
return cec_feature_abort(adap, msg);
break;