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| author | Luca Tettamanti <kronos.it@gmail.com> | 2010-09-22 10:41:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-22 13:52:45 -0700 |
| commit | ec5a32f67c603b11d68eb283d94eb89a4f6cfce1 (patch) | |
| tree | 5f7d7f48f40bf998390da7da43ef40dddfb3d933 | |
| parent | 56b49f4b8f6728b91d10c556c116175051b77b60 (diff) | |
| download | linux-stable-ec5a32f67c603b11d68eb283d94eb89a4f6cfce1.tar.gz linux-stable-ec5a32f67c603b11d68eb283d94eb89a4f6cfce1.tar.bz2 linux-stable-ec5a32f67c603b11d68eb283d94eb89a4f6cfce1.zip | |
atl1: fix resume
adapter->cmb.cmb is initialized when the device is opened and freed when
it's closed. Accessing it unconditionally during resume results either
in a crash (NULL pointer dereference, when the interface has not been
opened yet) or data corruption (when the interface has been used and
brought down adapter->cmb.cmb points to a deallocated memory area).
Cc: stable@kernel.org
Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Acked-by: Chris Snook <chris.snook@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/atlx/atl1.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c index 63b9ba0cc67e..bbd6e3009be0 100644 --- a/drivers/net/atlx/atl1.c +++ b/drivers/net/atlx/atl1.c @@ -2847,10 +2847,11 @@ static int atl1_resume(struct pci_dev *pdev) pci_enable_wake(pdev, PCI_D3cold, 0); atl1_reset_hw(&adapter->hw); - adapter->cmb.cmb->int_stats = 0; - if (netif_running(netdev)) + if (netif_running(netdev)) { + adapter->cmb.cmb->int_stats = 0; atl1_up(adapter); + } netif_device_attach(netdev); return 0; |