linux-kernel - Re: [PATCH] xsysace: Fix dereferencing of cf_id after hd

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Date:	Mon, 6 Apr 2009 22:58:10 +0200
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] xsysace: Fix dereferencing of cf_id after hd_driveid removal

On Sunday 05 April 2009, Grant Likely wrote:
> From: Grant Likely <grant.likely@...retlab.ca>
> 
> Commit 4aaf2fec718f6fbf38668edf733a0ab09a49cab1 (xsysace: make it
> 'struct hd_driveid'-free) converted the cf_id member of 'struct
> ace_device' from a 'struct hd_driveid' to a u16 array.  However,
> references to the base of the structure were still using the '&'
> operator.  When the address was used with the ata_id_u32() macro, the
> compiler used the size of the entire array instead of sizeof(u16) to
> calculate the offset from the base address.
>  
> This patch removes the use of the '&' operator from all references of
> cf_id to fix the bug and remove future confusion.
> 
> Signed-off-by: Grant Likely <grant.likely@...retlab.ca>
> CC: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>

Thanks for quickly spotting & fixing it.
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