linux-kernel - Re: [PATCH 4/5] sctp: Improve a size determination in sctp_inetaddr

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Message-ID: <90582e7d-1e22-cf23-2f51-6630ab1b9bf4@redhat.com>
Date:   Mon, 22 May 2017 17:00:36 -0400
From:   Vlad Yasevich <vyasevic@...hat.com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>,
        linux-sctp@...r.kernel.org, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Neil Horman <nhorman@...driver.com>,
        Vlad Yasevich <vyasevich@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 4/5] sctp: Improve a size determination in
 sctp_inetaddr_event()

On 05/22/2017 12:40 PM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Mon, 22 May 2017 18:08:24 +0200
> 
> Replace the specification of a data structure by a pointer dereference
> as the parameter for the operator "sizeof" to make the corresponding size
> determination a bit safer according to the Linux coding style convention.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  net/sctp/protocol.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
> index 64756c42cec9..057479b7bd72 100644
> --- a/net/sctp/protocol.c
> +++ b/net/sctp/protocol.c
> @@ -784,7 +784,7 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev,
>  
>  	switch (ev) {
>  	case NETDEV_UP:
> -		addr = kmalloc(sizeof(struct sctp_sockaddr_entry), GFP_ATOMIC);
> +		addr = kmalloc(sizeof(*addr), GFP_ATOMIC);
>  		if (addr) {
>  			addr->a.v4.sin_family = AF_INET;
>  			addr->a.v4.sin_port = 0;
> 

Acked-by: Vlad Yasevich <vyasevich@...il.com>

-vlad