Staging: iio/accel: Changed data type for val to unsigned long in write_frequency
In lis3102dq_write_frequency() we used a long variable to store the
value parsed from the char* buffer buf, as there only was a
strict_strtol() function to parse values.
Now we have got kstrto* which allows us to convert to the right data
type in most cases.
In this particular function we want to write a frequency value, and it
doesn't make sense to allow negative values here (as Dan Carpenter
pointed out in a previous email).
This means we can now parse the value into an unsigned long and get an
error for invalid (e.g. negative) values.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 4dbe4c7..5da40b33 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -332,11 +332,11 @@
size_t len)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- long val;
+ unsigned long val;
int ret;
u8 t;
- ret = strict_strtol(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
