From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jakub Kicinski <jakub.kicinski@netronome.com>
Subject: Re: [patch net-next RFC v2 03/11] devlink: Add support for reload
Date: Wed, 15 Nov 2017 00:03:59 -0800
Message-ID: <20171115000359.5a059580@cakuba>
References: <20171114161852.6633-1-jiri@resnulli.us>
        <20171114161852.6633-4-jiri@resnulli.us>
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To: Jiri Pirko <jiri@resnulli.us>
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On Tue, 14 Nov 2017 17:18:44 +0100, Jiri Pirko wrote:
> +static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
> +{
> +	struct devlink *devlink = info->user_ptr[0];
> +	int err;
> +
> +	if (!devlink->ops->reload)
> +		return -EOPNOTSUPP;
> +
> +	err = devlink_resources_validate(devlink, NULL, info);
> +	if (err)
> +		return err;
> +
> +	mutex_unlock(&devlink->lock);
> +	err = devlink->ops->reload(devlink);
> +	mutex_lock(&devlink->lock);
> +
> +	return err;
> +}

I'm a bit confused with the locking, why is devlink->lock not held
around the validation?