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netxen: Fix BUG "sleeping function called from invalid context"
o __netxen_nic_down() function might sleep while holding spinlock_t(tx_clean_lock). Acquire this lock for only releasing TX buffers instead of taking it for whole down path. Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com> Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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705f1c869d
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0d36882013
@ -135,6 +135,7 @@ void netxen_release_tx_buffers(struct netxen_adapter *adapter)
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int i, j;
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int i, j;
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struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
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struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
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spin_lock(&adapter->tx_clean_lock);
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cmd_buf = tx_ring->cmd_buf_arr;
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cmd_buf = tx_ring->cmd_buf_arr;
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for (i = 0; i < tx_ring->num_desc; i++) {
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for (i = 0; i < tx_ring->num_desc; i++) {
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buffrag = cmd_buf->frag_array;
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buffrag = cmd_buf->frag_array;
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@ -158,6 +159,7 @@ void netxen_release_tx_buffers(struct netxen_adapter *adapter)
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}
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}
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cmd_buf++;
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cmd_buf++;
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}
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}
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spin_unlock(&adapter->tx_clean_lock);
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}
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}
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void netxen_free_sw_resources(struct netxen_adapter *adapter)
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void netxen_free_sw_resources(struct netxen_adapter *adapter)
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@ -1186,7 +1186,6 @@ __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
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return;
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return;
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smp_mb();
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smp_mb();
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spin_lock(&adapter->tx_clean_lock);
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netif_carrier_off(netdev);
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netif_carrier_off(netdev);
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netif_tx_disable(netdev);
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netif_tx_disable(netdev);
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@ -1204,7 +1203,6 @@ __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
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netxen_napi_disable(adapter);
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netxen_napi_disable(adapter);
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netxen_release_tx_buffers(adapter);
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netxen_release_tx_buffers(adapter);
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spin_unlock(&adapter->tx_clean_lock);
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}
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}
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/* Usage: During suspend and firmware recovery module */
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/* Usage: During suspend and firmware recovery module */
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