Searched hist:f5ae2f93 (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/net/wireless/intel/iwlwifi/mvm/ |
| H A D | sta.c | f5ae2f93 Tue Mar 05 06:32:30 CST 2019 Johannes Berg <johannes.berg@intel.com> iwlwifi: mvm: avoid possible deadlock in TX path
iwl_mvm_tx_mpdu() may run from iwl_mvm_add_new_dqa_stream_wk(), where
soft-IRQs aren't disabled. In this case, it may hold the station lock
and be interrupted by a soft-IRQ that also wants to acquire said lock,
leading to a deadlock.
Fix it by disabling soft-IRQs in iwl_mvm_add_new_dqa_stream_wk().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
f5ae2f93 Tue Mar 05 06:32:30 CST 2019 Johannes Berg <johannes.berg@intel.com> iwlwifi: mvm: avoid possible deadlock in TX path
iwl_mvm_tx_mpdu() may run from iwl_mvm_add_new_dqa_stream_wk(), where
soft-IRQs aren't disabled. In this case, it may hold the station lock
and be interrupted by a soft-IRQ that also wants to acquire said lock,
leading to a deadlock.
Fix it by disabling soft-IRQs in iwl_mvm_add_new_dqa_stream_wk().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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