Commit b8eb3a10 authored Dec 01, 2010 by Don Skidmore Committed by David S. Miller Dec 06, 2010

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>

parent 46bcf14f

drivers/net/ixgbe/ixgbe_main.c

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -4771,6 +4771,9 @@ void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter)
	adapter->rx_ring[i] = NULL;		adapter->rx_ring[i] = NULL;
	}		}

			adapter->num_tx_queues = 0;
			adapter->num_rx_queues = 0;

	ixgbe_free_q_vectors(adapter);		ixgbe_free_q_vectors(adapter);
	ixgbe_reset_interrupt_capability(adapter);		ixgbe_reset_interrupt_capability(adapter);
	}		}