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media: cec-adap.c: stop trying LAs on CEC_TX_STATUS_TIMEOUT 

If, while trying to claim a free logical address, a POLL message
times out, then abort this process. A CEC_TX_STATUS_TIMEOUT
should be handled the same as a CEC_TX_STATUS_ABORTED.

This avoids a situation where transmits time out due to a
driver or hardware bug and it takes ages before the attempt
to find available free logical addresses finishes.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Hans Verkuil 2022-05-06 09:39:22 +02:00 committed by Mauro Carvalho Chehab
parent 498946cf6b
commit 184c387db0
1 changed files with 3 additions and 2 deletions
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5
drivers/media/cec/core/cec-adap.c
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@ -1282,10 +1282,11 @@ static int cec_config_log_addr(struct cec_adapter *adap,
return err;
/*
* The message was aborted due to a disconnect or
* The message was aborted or timed out due to a disconnect or
* unconfigure, just bail out.
*/
if (msg.tx_status & CEC_TX_STATUS_ABORTED)
if (msg.tx_status &
(CEC_TX_STATUS_ABORTED | CEC_TX_STATUS_TIMEOUT))
return -EINTR;
if (msg.tx_status & CEC_TX_STATUS_OK)
return 0;