We had a bug that prevented us from removing a station
after we entered the drain flow:
We assign sta to be NULL if it was an error value.
Then we tested it against -EBUSY, but forget to retrieve
the value again from mvm->fw_id_to_mac_id[sta_id].
Due to this bug, we ended up never removing the STA from
the firmware. This led to an firmware assert when we remove
the GO vif.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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