Messages in this thread Patch in this message |  | | | Date | Fri, 22 Oct 2010 11:51:30 -0700 | | From | Greg KH <> | | Subject | [056/103] atl1: fix resume |
| |
2.6.35-stable review patch. If anyone has any objections, please let us know.
------------------ From: Luca Tettamanti <kronos.it@gmail.com>
commit ec5a32f67c603b11d68eb283d94eb89a4f6cfce1 upstream.
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).
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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/net/atlx/atl1.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/net/atlx/atl1.c +++ b/drivers/net/atlx/atl1.c @@ -2847,10 +2847,11 @@ static int atl1_resume(struct pci_dev *p 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;
|  |