netxen: hold tx lock while sending firmware commands
Some firmware commands like mac address addition/deletion are sent on the transmit ring. So need to hold the tx lock before touching tx producer/consumer indices. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -503,6 +503,8 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
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i = 0;
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netif_tx_lock_bh(adapter->netdev);
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producer = adapter->cmd_producer;
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do {
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cmd_desc = &cmd_desc_arr[i];
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@ -527,6 +529,8 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
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netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
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netif_tx_unlock_bh(adapter->netdev);
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return 0;
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}
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