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From: Harvey Harrison <harvey.harrison@gmail.com>
To: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org,
	Ian Dall <ian@beware.dropbear.id.au>
Subject: Re: [1/1] w1: w1 temp calculation overflow fix.
Date: Mon, 09 Feb 2009 13:48:44 -0800	[thread overview]
Message-ID: <1234216124.5574.12.camel@brick> (raw)
In-Reply-To: <20090209214217.GA14958@ioremap.net>

On Tue, 2009-02-10 at 00:42 +0300, Evgeniy Polyakov wrote:
> Signed-off-by: Ian Dall <ian@beware.dropbear.id.au>
> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
> 
> diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
> index 2c8dff9..1ed3d55 100644
> --- a/drivers/w1/slaves/w1_therm.c
> +++ b/drivers/w1/slaves/w1_therm.c
> @@ -115,7 +115,7 @@ static struct w1_therm_family_converter w1_therm_families[] = {
>  
>  static inline int w1_DS18B20_convert_temp(u8 rom[9])
>  {
> -	s16 t = (rom[1] << 8) | rom[0];
> +	int t = ((s16)rom[1] << 8) | rom[0];

Alternatively,

	int t = (s16)le16_to_cpup((__le16 *)rom);

Cheers,

Harvey


  reply	other threads:[~2009-02-09 21:48 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-09 21:42 [1/1] w1: w1 temp calculation overflow fix Evgeniy Polyakov
2009-02-09 21:48 ` Harvey Harrison [this message]
2009-02-09 22:09   ` Evgeniy Polyakov
2009-02-09 21:56 ` Andrew Morton
2009-02-09 22:08   ` Evgeniy Polyakov
2009-02-09 22:48     ` Andrew Morton
2009-02-09 23:31       ` Andrew Morton
2009-02-10  8:54         ` Evgeniy Polyakov
2009-02-11  6:41         ` Ian Dall

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