Author: eugen
Date: Thu Apr 9 15:30:21 2020
New Revision: 359746
URL: https://svnweb.freebsd.org/changeset/base/359746
Log:
net80211: fix another possible panic for some drivers
This change fixes another case for panic missed in r343035
and seen with run(4)-based system. This is direct commit to stable/11
because r306591 could not be merged due to differences in KPI.
Note that stable/12 has this problem fixed already.
Modified:
stable/11/sys/net80211/ieee80211_amrr.c
Modified: stable/11/sys/net80211/ieee80211_amrr.c
==============================================================================
--- stable/11/sys/net80211/ieee80211_amrr.c Thu Apr 9 14:44:46 2020
(r359745)
+++ stable/11/sys/net80211/ieee80211_amrr.c Thu Apr 9 15:30:21 2020
(r359746)
@@ -409,6 +409,9 @@ amrr_tx_update(const struct ieee80211vap *vap, const s
struct ieee80211_amrr_node *amn = ni->ni_rctls;
int txcnt = *(int *)arg1, success = *(int *)arg2, retrycnt = *(int
*)arg3;
+ if (!amn)
+ return;
+
amn->amn_txcnt = txcnt;
amn->amn_success = success;
amn->amn_retrycnt = retrycnt;
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