From: taozhang taozhang@bestechnic.com
[ Upstream commit 50b2e8711462409cd368c41067405aa446dfa2af ]
ieee80211_register_hw free the allocated cipher suites when registering wiphy fail, and ieee80211_free_hw will re-free it.
set wiphy_ciphers_allocated to false after freeing allocated cipher suites.
Signed-off-by: taozhang taozhang@bestechnic.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/mac80211/main.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 5311c3cd3050..9617ff8e2714 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1357,8 +1357,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ieee80211_led_exit(local); destroy_workqueue(local->workqueue); fail_workqueue: - if (local->wiphy_ciphers_allocated) + if (local->wiphy_ciphers_allocated) { kfree(local->hw.wiphy->cipher_suites); + local->wiphy_ciphers_allocated = false; + } kfree(local->int_scan_req); return result; } @@ -1426,8 +1428,10 @@ void ieee80211_free_hw(struct ieee80211_hw *hw) mutex_destroy(&local->iflist_mtx); mutex_destroy(&local->mtx);
- if (local->wiphy_ciphers_allocated) + if (local->wiphy_ciphers_allocated) { kfree(local->hw.wiphy->cipher_suites); + local->wiphy_ciphers_allocated = false; + }
idr_for_each(&local->ack_status_frames, ieee80211_free_ack_frame, NULL);