linux-kernel - Re: [PATCH] let proc net directory inodes reflect to active net namespace

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Message-ID: <20190629132959.GA9370@avx2>
Date:   Sat, 29 Jun 2019 16:29:59 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     "Hallsmark, Per" <Per.Hallsmark@...driver.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] let proc net directory inodes reflect to active net
 namespace

On Tue, Jun 25, 2019 at 10:36:06AM +0000, Hallsmark, Per wrote:
> +struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
> +				      struct proc_dir_entry *parent)
> +{
> +	struct proc_dir_entry *pde;
> +
> +	pde = proc_mkdir_data(name, 0, parent, net);
> +	pde->proc_dops = &proc_net_dentry_ops;
> +
> +	return pde;
> +}

This requires NULL check at least.