linux-kernel - Re: [PATCH] buggered kmalloc()

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Message-ID: <20070720210046.GK21668@ftp.linux.org.uk>
Date:	Fri, 20 Jul 2007 22:00:46 +0100
From:	Al Viro <viro@....linux.org.uk>
To:	Dave Jones <davej@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mike Christie <michaelc@...wisc.edu>,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	Andy Whitcroft <apw@...ibm.com>
Subject: Re: [PATCH] buggered kmalloc()

On Fri, Jul 20, 2007 at 04:05:30PM -0400, Dave Jones wrote:
> On Fri, Jul 20, 2007 at 04:03:40PM +0100, Al Viro wrote:
>  > Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
>  > ---
>  > diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
>  > index aebcd5f..7829ab1 100644
>  > --- a/drivers/scsi/iscsi_tcp.c
>  > +++ b/drivers/scsi/iscsi_tcp.c
>  > @@ -1885,7 +1885,7 @@ static int iscsi_tcp_get_addr(struct iscsi_conn *conn, struct socket *sock,
>  >  	struct sockaddr_in *sin;
>  >  	int rc = 0, len;
>  >  
>  > -	addr = kmalloc(GFP_KERNEL, sizeof(*addr));
>  > +	addr = kmalloc(sizeof(*addr), GFP_KERNEL);
>  >  	if (!addr)
>  >  		return -ENOMEM;
> 
> This seems like something that would be trivial to check for in checkpatch.

Or just run sparse before and after - all such places stand out immediately...
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