On 1/21/2019 10:21 AM, Wei Yongjun wrote:
> Fix to return a negative error code -EMSGSIZE from the error handling
> case, otherwise 0 or uninitialized value may be returned.
> 
> Fixes: cb5ccfbe73b3 ("devlink: Add health buffer support")
> Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>

Thanks for the fix!
However, I am working to replace this entire code section, will squash 
your patch to the new code.

> ---
>   net/core/devlink.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/net/core/devlink.c b/net/core/devlink.c
> index 60248a5..0d4c774 100644
> --- a/net/core/devlink.c
> +++ b/net/core/devlink.c
> @@ -4008,8 +4008,10 @@ void devlink_health_buffer_nest_cancel(struct 
> devlink_health_buffer *buffer)
>               case DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE:
>               case DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE_ARRAY:
>                       buffer_nlattr[i] = nla_nest_start(skb, desc->attrtype);
> -                     if (!buffer_nlattr[i])
> +                     if (!buffer_nlattr[i]) {
> +                             err = -EMSGSIZE;
>                               goto nla_put_failure;
> +                     }
>                       i++;
>                       break;
>               case DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE_DATA:
> 
> 
> 

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