[RFC/PATCH] hwmon: fix common race conditions, batch 1

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On Tue, Mar 04, 2008 at 09:54:40AM -0500, Mark M. Hoffman wrote:

<snip>
> diff --git a/drivers/hwmon/adt7473.c b/drivers/hwmon/adt7473.c
> index 9587869..3807062 100644
> --- a/drivers/hwmon/adt7473.c
> +++ b/drivers/hwmon/adt7473.c
> @@ -422,11 +422,9 @@ static ssize_t show_volt(struct device *dev, struct device_attribute *devattr,
>   * number in the range -128 to 127, or as an unsigned number that must
>   * be offset by 64.
>   */
> -static int decode_temp(struct adt7473_data *data, u8 raw)
> +static int decode_temp(u8 twos_complement, u8 raw)
>  {
> -	if (data->temp_twos_complement)
> -		return (s8)raw;
> -	return raw - 64;
> +	return twos_complement ? (s8)raw : raw - 64;

Since this patch is to fix a bunch of race conditions, I think this chunk
would be better off as a separate cleanup patch.  That said, you're the
maintainer, so it's your call.... :)

I also suspect that ibmpex/i5k-amb will need similar cleanups.  I can
generate patches if you want, though if you're intent upon fixing all of
the drivers as one big push, let me know.

For the adt7470/adt7473 bits,
Acked-by: Darrick J. Wong <djwong at us.ibm.com>

--D




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