tools:iio:iio_utils: pass strings as const
Mark strings, which are not supposed to be changed (basedir, filename,
value), as const in function parameters.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index dfee1a3..ec9ab7f 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -634,7 +634,8 @@
return ret;
}
-static int _write_sysfs_int(char *filename, char *basedir, int val, int verify)
+static int _write_sysfs_int(const char *filename, const char *basedir, int val,
+ int verify)
{
int ret = 0;
FILE *sysfsfp;
@@ -707,7 +708,7 @@
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_int(char *filename, char *basedir, int val)
+int write_sysfs_int(const char *filename, const char *basedir, int val)
{
return _write_sysfs_int(filename, basedir, val, 0);
}
@@ -721,13 +722,14 @@
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_int_and_verify(char *filename, char *basedir, int val)
+int write_sysfs_int_and_verify(const char *filename, const char *basedir,
+ int val)
{
return _write_sysfs_int(filename, basedir, val, 1);
}
-static int _write_sysfs_string(char *filename, char *basedir, char *val,
- int verify)
+static int _write_sysfs_string(const char *filename, const char *basedir,
+ const char *val, int verify)
{
int ret = 0;
FILE *sysfsfp;
@@ -805,7 +807,8 @@
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_string_and_verify(char *filename, char *basedir, char *val)
+int write_sysfs_string_and_verify(const char *filename, const char *basedir,
+ const char *val)
{
return _write_sysfs_string(filename, basedir, val, 1);
}
@@ -818,7 +821,8 @@
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int write_sysfs_string(char *filename, char *basedir, char *val)
+int write_sysfs_string(const char *filename, const char *basedir,
+ const char *val)
{
return _write_sysfs_string(filename, basedir, val, 0);
}
@@ -831,7 +835,7 @@
* Returns the read integer value >= 0 on success, otherwise a negative error
* code.
**/
-int read_sysfs_posint(char *filename, char *basedir)
+int read_sysfs_posint(const char *filename, const char *basedir)
{
int ret;
FILE *sysfsfp;
@@ -875,7 +879,7 @@
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int read_sysfs_float(char *filename, char *basedir, float *val)
+int read_sysfs_float(const char *filename, const char *basedir, float *val)
{
int ret = 0;
FILE *sysfsfp;