mac80211: station state transition error handling
In the future, when we start notifying drivers,
state transitions could potentially fail. To make
it easier to distinguish between programming bugs
and driver failures:
* rename sta_info_move_state() to
sta_info_pre_move_state() which can only be
called before the station is inserted (and
check this with a new station flag).
* rename sta_info_move_state_checked() to just
plain sta_info_move_state(), as it will be
the regular function that can fail for more
than just one reason (bad transition or an
error from the driver)
This makes the programming model easier -- one of
the functions can only be called before insertion
and can't fail, the other can fail.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index e47768c..6b0d70e 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -318,9 +318,9 @@
goto err_del_interface;
}
- sta_info_move_state(sta, IEEE80211_STA_AUTH);
- sta_info_move_state(sta, IEEE80211_STA_ASSOC);
- sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
+ sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
+ sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
res = sta_info_insert(sta);
if (res) {