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-rw-r--r--net/mac80211/util.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 7f7ddc527baa..b0e3a4248bd5 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2151,7 +2151,13 @@ void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata)
chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
lockdep_is_held(&local->chanctx_mtx));
- if (WARN_ON_ONCE(!chanctx_conf))
+ /*
+ * This function can be called from a work, thus it may be possible
+ * that the chanctx_conf is removed (due to a disconnection, for
+ * example).
+ * So nothing should be done in such case.
+ */
+ if (!chanctx_conf)
goto unlock;
chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
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