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Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[firefly-linux-kernel-4.4.55.git]
/
net
/
mac80211
/
tx.c
diff --git
a/net/mac80211/tx.c
b/net/mac80211/tx.c
index 5950e3abead9b49a7bfc4a8d17d77ce250d1b578..b64b42bc774be82ce40133237624a848d237289f 100644
(file)
--- a/
net/mac80211/tx.c
+++ b/
net/mac80211/tx.c
@@
-2230,6
+2230,9
@@
struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
sdata = vif_to_sdata(vif);
+ if (!ieee80211_sdata_running(sdata))
+ goto out;
+
if (tim_offset)
*tim_offset = 0;
if (tim_length)