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wifi: iwlwifi: mvm: check link more carefully

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Some cases of restart crashing here have been reported,
while we figure out where this is going wrong, check
the link more carefully to avoid the crash.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230830112059.2b81f52ce18e.I8f3b1962013107e2d7491d817c3349359341c6ee@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-08-30 11:31:01 +03:00
parent 4831d19b40
commit 3d6d21b292
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
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@ -3883,7 +3883,8 @@ int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
/* this would be a mac80211 bug ... but don't crash */
for_each_sta_active_link(vif, sta, link_sta, link_id) {
if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) {
if (WARN_ON_ONCE(!mvmvif->link[link_id] ||
!mvmvif->link[link_id]->phy_ctxt)) {
mutex_unlock(&mvm->mutex);
return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
&mvm->status) ? 0 : -EINVAL;