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[media] cec: set unclaimed addresses to CEC_LOG_ADDR_INVALID 

Up to 4 logical addresses can be claimed. Make sure that any
unclaimed logical addresses are set to CEC_LOG_ADDR_INVALID as
per the documentation.

Take special care in the unregistered case: when falling back to
unregistered num_log_addrs may be > 1, so mark those as invalid.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hans Verkuil 2016-08-14 08:27:09 -03:00 committed by Mauro Carvalho Chehab
parent dcceb1eaf2
commit 0c1d61b0e4
1 changed files with 4 additions and 0 deletions
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4
drivers/staging/media/cec/cec-adap.c
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@ -1056,6 +1056,8 @@ static int cec_config_thread_func(void *arg)
/* Fall back to unregistered */
las->log_addr[0] = CEC_LOG_ADDR_UNREGISTERED;
las->log_addr_mask = 1 << las->log_addr[0];
for (i = 1; i < las->num_log_addrs; i++)
las->log_addr[i] = CEC_LOG_ADDR_INVALID;
}
adap->is_configured = true;
adap->is_configuring = false;
@ -1074,6 +1076,8 @@ static int cec_config_thread_func(void *arg)
cec_report_features(adap, i);
cec_report_phys_addr(adap, i);
}
for (i = las->num_log_addrs; i < CEC_MAX_LOG_ADDRS; i++)
las->log_addr[i] = CEC_LOG_ADDR_INVALID;
mutex_lock(&adap->lock);
adap->kthread_config = NULL;
mutex_unlock(&adap->lock);