[Intel-wired-lan] [PATCH v4 05/13] ice: Clean control queues only when they are initialized

Brelinski, TonyX tonyx.brelinski at intel.com
Tue Aug 21 21:31:27 UTC 2018


> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Anirudh Venkataramanan
> Sent: Thursday, August 9, 2018 6:29 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH v4 05/13] ice: Clean control queues only
> when they are initialized
> 
> From: Preethi Banala <preethi.banala at intel.com>
> 
> Clean control queues only when they are initialized. One of the ways to
> validate if the basic initialization is done is by checking value of
> cq->sq.head and cq->rq.head variables that specify the register address.
> This patch adds a check to avoid NULL pointer dereference crash when tried
> to shutdown uninitialized control queue.
> 
> Signed-off-by: Preethi Banala <preethi.banala at intel.com>
> Signed-off-by: Anirudh Venkataramanan
> <anirudh.venkataramanan at intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_controlq.c | 24 ++++++++++++-------
>  1 file changed, 16 insertions(+), 8 deletions(-)

Tested-by: Tony Brelinski <tonyx.brelinski at intel.com>




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