Re: [PATCH net-next] net: core: Return the correct errno code

[Jakub Kicinski]

On Thu, 4 Feb 2021 11:19:23 +0800 Zheng Yongjun wrote:
> When kalloc or kmemdup failed, should return ENOMEM rather than ENOBUF.
> 
> Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
> ---
>  net/core/rtnetlink.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
> index 7d7223691783..6df8fb25668b 100644
> --- a/net/core/rtnetlink.c
> +++ b/net/core/rtnetlink.c
> @@ -177,7 +177,7 @@ static int rtnl_register_internal(struct module *owner,
>  	struct rtnl_link *link, *old;
>  	struct rtnl_link __rcu **tab;
>  	int msgindex;
> -	int ret = -ENOBUFS;
> +	int ret = -ENOMEM;

while at it please move the line above int msgindex; so that variable
lines are sorted longest to shortest.

>  	BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
>  	msgindex = rtm_msgindex(msgtype);