linux-kernel - Re: [PATCH] drivers/net: enic: release rtnl

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Date:	Mon, 08 Jul 2013 09:26:11 -0700
From:	Nishank Trivedi <nistrive@...co.com>
To:	Konstantin Khlebnikov <khlebnikov@...nvz.org>
CC:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Neel Patel <neepatel@...co.com>,
	Christian Benvenuti <benve@...co.com>
Subject: Re: [PATCH] drivers/net: enic: release rtnl_lock on error-path

On 7/8/13 12:22 AM, Konstantin Khlebnikov wrote:
> enic_change_mtu_work() must call rtnl_unlock() on all exiting paths.
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@...nvz.org>
> Cc: Christian Benvenuti <benve@...co.com>
> Cc: Roopa Prabhu <roprabhu@...co.com>
> Cc: Neel Patel <neepatel@...co.com>
> Cc: Nishank Trivedi <nistrive@...co.com>
> ---
>   drivers/net/ethernet/cisco/enic/enic_main.c |    2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
> index 635f559..992ec2e 100644
> --- a/drivers/net/ethernet/cisco/enic/enic_main.c
> +++ b/drivers/net/ethernet/cisco/enic/enic_main.c
> @@ -1761,6 +1761,7 @@ static void enic_change_mtu_work(struct work_struct *work)
>   	enic_synchronize_irqs(enic);
>   	err = vnic_rq_disable(&enic->rq[0]);
>   	if (err) {
> +		rtnl_unlock();
>   		netdev_err(netdev, "Unable to disable RQ.\n");
>   		return;
>   	}
> @@ -1773,6 +1774,7 @@ static void enic_change_mtu_work(struct work_struct *work)
>   	vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
>   	/* Need at least one buffer on ring to get going */
>   	if (vnic_rq_desc_used(&enic->rq[0]) == 0) {
> +		rtnl_unlock();
>   		netdev_err(netdev, "Unable to alloc receive buffers.\n");
>   		return;
>   	}
>

Acked.

Thanks.
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