Re: [PATCH 2/3] net: mv643xx_eth: fix orphaned statistics timercrash

[Jason Cooper]

On Wed, Oct 02, 2013 at 12:57:21PM +0200, Sebastian Hesselbarth wrote:
> The periodic statistics timer gets started at port _probe() time, but
> is stopped on _stop() only. In a modular environment, this can cause
> the timer to access already deallocated memory, if the module is unloaded
> without starting the eth device. To fix this, we add the timer right
> before the port is started, instead of at _probe() time.
> 
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
> ---
> Cc: David Miller <davem@xxxxxxxxxxxxx>
> Cc: Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>
> Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
> Cc: netdev@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> ---
>  drivers/net/ethernet/marvell/mv643xx_eth.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: Jason Cooper <jason@xxxxxxxxxxxxxx>

Introduced by:

  4ff3495a mv643xx_eth: enforce frequent hardware statistics polling

which also goes all the way back to v2.6.28

thx,

Jason.
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