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authorJohannes Berg <johannes.berg@intel.com>2012-12-13 20:42:30 +0400
committerJohannes Berg <johannes.berg@intel.com>2013-01-03 16:01:35 +0400
commit8a61af65c6d03781015315dbc43d0942a5b31db9 (patch)
tree624695ba646281508490cb1737fb69d8174fa87a /net/mac80211/chan.c
parent529ba6e9313dbe60dab7e72c6fdf647a012e9f5b (diff)
downloadlinux-8a61af65c6d03781015315dbc43d0942a5b31db9.tar.xz
mac80211: fix channel context iteration
During suspend/resume channel contexts might be iterated even if they haven't been re-added to the driver, keep track of this and skip them in iteration. Also use the new status for sanity checks. Also clarify the fact that during HW restart all contexts are iterated over (thanks Eliad.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/chan.c')
-rw-r--r--net/mac80211/chan.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 80e55527504b..1bfe0a8b19d2 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -381,7 +381,8 @@ void ieee80211_iter_chan_contexts_atomic(
rcu_read_lock();
list_for_each_entry_rcu(ctx, &local->chanctx_list, list)
- iter(hw, &ctx->conf, iter_data);
+ if (ctx->driver_present)
+ iter(hw, &ctx->conf, iter_data);
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ieee80211_iter_chan_contexts_atomic);