From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linux IDE <linux-ide@vger.kernel.org>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
stable@kernel.org
Subject: Re: [PATCH 3/3] ide: Fix cs5535 driver accessing beyond array boundary
Date: Thu, 18 Oct 2007 23:10:50 +0200 [thread overview]
Message-ID: <200710182310.50315.bzolnier@gmail.com> (raw)
In-Reply-To: <20071018005624.DC749DDEAB@ozlabs.org>
On Thursday 18 October 2007, Benjamin Herrenschmidt wrote:
> The cs5535 use an incorrect construct to access the other drive
> of a pair, causing it to access beyond an array boundary on non-0
> interfaces. This fixes it by using the new ide_get_paired_drive()
> hepler instead.
>
> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
applied with patch description fixes
> ---
>
> drivers/ide/pci/cs5535.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux-work/drivers/ide/pci/cs5535.c
> ===================================================================
> --- linux-work.orig/drivers/ide/pci/cs5535.c 2007-10-18 10:43:39.000000000 +1000
> +++ linux-work/drivers/ide/pci/cs5535.c 2007-10-18 10:44:00.000000000 +1000
> @@ -84,7 +84,7 @@ static void cs5535_set_speed(ide_drive_t
>
> /* Set the PIO timings */
> if ((speed & XFER_MODE) == XFER_PIO) {
> - ide_drive_t *pair = &drive->hwif->drives[drive->dn ^ 1];
> + ide_drive_t *pair = ide_get_paired_drive(drive);
> u8 cmd, pioa;
>
> cmd = pioa = speed - XFER_PIO_0;
next prev parent reply other threads:[~2007-10-18 22:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-18 0:56 [PATCH 0/3] ide: Fix use of paired device Benjamin Herrenschmidt
2007-10-18 0:56 ` [PATCH 1/3] ide: Add ide_get_paired_drive() helper Benjamin Herrenschmidt
2007-10-18 12:00 ` Sergei Shtylyov
2007-10-18 21:10 ` Bartlomiej Zolnierkiewicz
2007-10-18 0:56 ` [PATCH 2/3] ide: Fix siimage driver accessing beyond array boundary Benjamin Herrenschmidt
2007-10-18 12:02 ` Sergei Shtylyov
2007-10-18 12:16 ` Benjamin Herrenschmidt
2007-10-18 21:30 ` Bartlomiej Zolnierkiewicz
2007-10-18 21:10 ` Bartlomiej Zolnierkiewicz
2007-10-18 0:56 ` [PATCH 3/3] ide: Fix cs5535 " Benjamin Herrenschmidt
2007-10-18 12:03 ` Sergei Shtylyov
2007-10-18 21:10 ` Bartlomiej Zolnierkiewicz [this message]
2007-10-18 11:54 ` [PATCH 0/3] ide: Fix use of paired device Sergei Shtylyov
2007-10-18 11:58 ` Sergei Shtylyov
2007-10-18 12:14 ` Benjamin Herrenschmidt
2007-10-18 20:29 ` Bartlomiej Zolnierkiewicz
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