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SubjectRe: [PATCH 1/1] net: hns: avoid null pointer dereference
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Hi Heinrich,

This patch is fine to me.

Thanks,

Yisen

在 2016/5/18 4:01, Heinrich Schuchardt 写道:
> In the statement
> assert(priv || priv->ae_handle);
> the right side of || is only evaluated if priv is null.
>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> ---
> drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
> index 3d746c8..834a50a 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
> @@ -720,7 +720,7 @@ static int hns_set_pauseparam(struct net_device *net_dev,
> struct hnae_handle *h;
> struct hnae_ae_ops *ops;
>
> - assert(priv || priv->ae_handle);
> + assert(priv && priv->ae_handle);
>
> h = priv->ae_handle;
> ops = h->dev->ops;
> @@ -780,7 +780,7 @@ static int hns_set_coalesce(struct net_device *net_dev,
> struct hnae_ae_ops *ops;
> int ret;
>
> - assert(priv || priv->ae_handle);
> + assert(priv && priv->ae_handle);
>
> ops = priv->ae_handle->dev->ops;
>
> @@ -1111,7 +1111,7 @@ void hns_get_regs(struct net_device *net_dev, struct ethtool_regs *cmd,
> struct hns_nic_priv *priv = netdev_priv(net_dev);
> struct hnae_ae_ops *ops;
>
> - assert(priv || priv->ae_handle);
> + assert(priv && priv->ae_handle);
>
> ops = priv->ae_handle->dev->ops;
>
> @@ -1135,7 +1135,7 @@ static int hns_get_regs_len(struct net_device *net_dev)
> struct hns_nic_priv *priv = netdev_priv(net_dev);
> struct hnae_ae_ops *ops;
>
> - assert(priv || priv->ae_handle);
> + assert(priv && priv->ae_handle);
>
> ops = priv->ae_handle->dev->ops;
> if (!ops->get_regs_len) {
>

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