From: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
FW dump may be triggered when running init ucode, for example due to a
sysassert. In this case fw_dump_wk may run after mvm is freed, resulting
in a kernel panic.
Fix it by flushing the work.
Fixes: 01b988a708af ("iwlwifi: mvm: allow to collect debug data when restart is disabled")
Cc: <stable@xxxxxxxxxxxxxxx> [3.18+]
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/mvm/ops.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index a37de3f..f0cb092 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -590,6 +590,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
ieee80211_unregister_hw(mvm->hw);
iwl_mvm_leds_exit(mvm);
out_free:
+ flush_delayed_work(&mvm->fw_dump_wk);
iwl_phy_db_free(mvm->phy_db);
kfree(mvm->scan_cmd);
if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
--
2.5.3
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