iwlwifi: fix canceling monitor_recover timer
To make del_timer_sync() works we have to assure that timer function does not rearm the timer. To achieve that we cancel timer with STATUS_EXIT_PENDING bit set in __iwl{3945,}_down function. Patch also fix priv->txq memory usage after free for iwl3945, because it move timer cancellation before iwl3945_hw_txq_ctx_free(priv) is called. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -2764,6 +2764,11 @@ static void __iwl_down(struct iwl_priv *priv)
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if (!exit_pending)
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set_bit(STATUS_EXIT_PENDING, &priv->status);
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/* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
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* to prevent rearm timer */
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if (priv->cfg->ops->lib->recover_from_tx_stall)
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del_timer_sync(&priv->monitor_recover);
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iwl_clear_ucode_stations(priv);
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iwl_dealloc_bcast_station(priv);
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iwl_clear_driver_stations(priv);
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@ -3870,8 +3875,6 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
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cancel_work_sync(&priv->beacon_update);
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del_timer_sync(&priv->statistics_periodic);
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del_timer_sync(&priv->ucode_trace);
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if (priv->cfg->ops->lib->recover_from_tx_stall)
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del_timer_sync(&priv->monitor_recover);
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}
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static void iwl_init_hw_rates(struct iwl_priv *priv,
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@ -2571,6 +2571,11 @@ static void __iwl3945_down(struct iwl_priv *priv)
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if (!exit_pending)
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set_bit(STATUS_EXIT_PENDING, &priv->status);
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/* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
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* to prevent rearm timer */
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if (priv->cfg->ops->lib->recover_from_tx_stall)
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del_timer_sync(&priv->monitor_recover);
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/* Station information will now be cleared in device */
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iwl_clear_ucode_stations(priv);
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iwl_dealloc_bcast_station(priv);
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@ -3811,8 +3816,6 @@ static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
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cancel_delayed_work(&priv->alive_start);
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cancel_work_sync(&priv->start_internal_scan);
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cancel_work_sync(&priv->beacon_update);
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if (priv->cfg->ops->lib->recover_from_tx_stall)
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del_timer_sync(&priv->monitor_recover);
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}
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static struct attribute *iwl3945_sysfs_entries[] = {
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