linux-kernel - Re: [patch 27/45] tpm: interrupt clear fix

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Date:	Mon, 17 Jul 2006 09:56:03 -0700
From:	Kylene Jo Hall <kjhall@...ibm.com>
To:	Greg KH <gregkh@...e.de>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>, stable@...nel.org,
	Justin Forbes <jmforbes@...uxtx.org>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	"Theodore Ts'o" <tytso@....edu>,
	Randy Dunlap <rdunlap@...otime.net>,
	Dave Jones <davej@...hat.com>,
	Chuck Wolber <chuckw@...ntumlinux.com>,
	Chris Wedgwood <reviews@...cw.f00f.org>, torvalds@...l.org,
	akpm@...l.org, alan@...rguk.ukuu.org.uk
Subject: Re: [patch 27/45] tpm: interrupt clear fix

There was a different patch proposed and accepted already for this fix
based on comments on the list.

Thanks,
Kylie


On Mon, 2006-07-17 at 09:28 -0700, Greg KH wrote:
> plain text document attachment (tpm-interrupt-clear-fix.patch)
> -stable review patch.  If anyone has any objections, please let us know.
> 
> ------------------
> From: Kylene Jo Hall <kjhall@...ibm.com>
> 
> Under stress testing I found that the interrupt is not always cleared.
> This is a bug and this patch should go into 2.6.18 and 2.6.17.x.
> 
> Signed-off-by: Kylene Hall <kjhall@...ibm.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
> 
> ---
>  drivers/char/tpm/tpm_tis.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- linux-2.6.17.6.orig/drivers/char/tpm/tpm_tis.c
> +++ linux-2.6.17.6/drivers/char/tpm/tpm_tis.c
> @@ -424,6 +424,7 @@ static irqreturn_t tis_int_handler(int i
>  	iowrite32(interrupt,
>  		  chip->vendor.iobase +
>  		  TPM_INT_STATUS(chip->vendor.locality));
> +	mb();
>  	return IRQ_HANDLED;
>  }
>  
> 
> --

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