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ixgbe: fix possible NULL pointer deference in shutdown path 

After freeing the rings we were not zeroing out the ring count values.
This patch now clears these counts correctly.

Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Don Skidmore 2010-12-01 20:54:53 +00:00 committed by David S. Miller
parent 46bcf14f44
commit b8eb3a1046
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ixgbe/ixgbe_main.c
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@ -4771,6 +4771,9 @@ void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter)
adapter->rx_ring[i] = NULL;
}
adapter->num_tx_queues = 0;
adapter->num_rx_queues = 0;
ixgbe_free_q_vectors(adapter);
ixgbe_reset_interrupt_capability(adapter);
}