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.verk...@cisco.com>
---
 drivers/staging/media/cec/cec-adap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/media/cec/cec-adap.c 
b/drivers/staging/media/cec/cec-adap.c
index f1297af..e980ac9 100644
--- a/drivers/staging/media/cec/cec-adap.c
+++ b/drivers/staging/media/cec/cec-adap.c
@@ -1059,6 +1059,8 @@ configured:
                /* 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;
@@ -1077,6 +1079,8 @@ configured:
                        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);
-- 
2.8.1

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