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SubjectRe: [PATCH 2/2] Hwmon: f71882fg: use strict_stro(l|ul) instead of simple_strto$1
Hi Giel,

On Mon, 22 Mar 2010 12:41:57 +0100, Giel van Schijndel wrote:
> On Mon, Mar 22, 2010 at 11:23:08AM +0100, Jean Delvare wrote:
> > On Sun, 21 Mar 2010 16:37:14 +0100, Giel van Schijndel wrote:
> >> Use the strict_strol and strict_stroul functions instead of simple_strol
> >> and simple_stroul respectively in sysfs functions.
> >>
> >> Signed-off-by: Giel van Schijndel <me@mortis.eu>
> >> ---
> >> drivers/hwmon/f71882fg.c | 89 ++++++++++++++++++++++++++++++++++++++--------
> >> 1 files changed, 74 insertions(+), 15 deletions(-)
> >>
> >> diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
> >> index 21bc661..5c725a3 100644
> >> --- a/drivers/hwmon/f71882fg.c
> >> +++ b/drivers/hwmon/f71882fg.c
> >> @@ -1128,7 +1128,10 @@ static ssize_t store_fan_full_speed(struct device *dev,
> >> {
> >> struct f71882fg_data *data = dev_get_drvdata(dev);
> >> int nr = to_sensor_dev_attr_2(devattr)->index;
> >> - long val = simple_strtol(buf, NULL, 10);
> >> + long val;
> >> +
> >> + if (strict_strtol(buf, 10, &val) == -EINVAL)
> >> + return -EINVAL;
> >
> > That's not correct. You want to return an error if strict_strtol()
> > returns _any_ error, not just -EINVAL. Maybe the current
> > implementation can't return any other error code, but you should not
> > assume this will always be the case in the future.
>
> Agreed. New patch follows this line:
> ------------------------------------------------------------------------
> Hwmon: f71882fg: use strict_stro(l|ul) instead of simple_strto$1
>
> Use the strict_strol and strict_stroul functions instead of simple_strol
> and simple_stroul respectively in sysfs functions.
>
> Signed-off-by: Giel van Schijndel <me@mortis.eu>
> ---
> drivers/hwmon/f71882fg.c | 133 ++++++++++++++++++++++++++++++++++++----------
> 1 files changed, 104 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
> index 21bc661..4230729 100644
> --- a/drivers/hwmon/f71882fg.c
> +++ b/drivers/hwmon/f71882fg.c
> @@ -1127,8 +1127,12 @@ static ssize_t store_fan_full_speed(struct device *dev,
> const char *buf, size_t count)
> {
> struct f71882fg_data *data = dev_get_drvdata(dev);
> - int nr = to_sensor_dev_attr_2(devattr)->index;
> - long val = simple_strtol(buf, NULL, 10);
> + int err, nr = to_sensor_dev_attr_2(devattr)->index;
> + long val;
> +
> + err = strict_strtol(buf, 10, &val);
> + if (err)
> + return err;
>
> val = SENSORS_LIMIT(val, 23, 1500000);
> val = fan_to_reg(val);
> (...)

Looks good to me this time. I'll apply this patch unless Hans objects.

--
Jean Delvare


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