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hwmon: Constify str parameter of hwmon_ops->read_string 

The read_string callback is supposed to retrieve a pointer to a
constant string.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Jean Delvare 2017-03-07 06:15:15 -08:00 committed by Guenter Roeck
parent b3ee2785ee
commit 5ba6bcbc33
2 changed files with 2 additions and 2 deletions
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2
drivers/hwmon/hwmon.c
View File

@ -186,7 +186,7 @@ static ssize_t hwmon_attr_show_string(struct device *dev,
char *buf)
{
struct hwmon_device_attribute *hattr = to_hwmon_attr(devattr);
char *s;
const char *s;
int ret;
ret = hattr->ops->read_string(dev, hattr->type, hattr->attr,

2
include/linux/hwmon.h
View File

@ -337,7 +337,7 @@ struct hwmon_ops {
int (*read)(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val);
int (*read_string)(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, char **str);
u32 attr, int channel, const char **str);
int (*write)(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long val);
};