serial_hid: address constness nits

diff --git a/src/serial_hid.c b/src/serial_hid.c
index ee073d1dbbb509d60d7d62cdc69975c9d90e3f4b..0c5b9ccc27d5ee94a7e53b94df45f2ab57c32f67 100644 (file)
--- a/src/serial_hid.c
+++ b/src/serial_hid.c
@@ -591,9 +591,9 @@ static int ser_hid_setup_funcs(struct sr_serial_dev_inst *serial)
  * returns the chip index and advances the spec pointer upon match,
  * returns SER_HID_CHIP_UNKNOWN upon mismatch.
  */
-static enum ser_hid_chip_t ser_hid_chip_find_enum(char **spec_p)
+static enum ser_hid_chip_t ser_hid_chip_find_enum(const char **spec_p)
 {
-       gchar *spec;
+       const gchar *spec;
        enum ser_hid_chip_t idx;
        struct ser_hid_chip_functions *desc;
 
@@ -774,7 +774,8 @@ static int ser_hid_parse_conn_spec(
                        serno = g_strdup(p);
                        p += strlen(p);
                } else if (!chip) {
-                       char *copy, *endptr;
+                       char *copy;
+                       const char *endptr;
                        const char *name;
                        copy = g_strdup(p);
                        endptr = copy;
@@ -960,7 +961,7 @@ static int ser_hid_chip_search(enum ser_hid_chip_t *chip_ref,
                sr_dbg("DBG: %s(), name %s", __func__, name);
                if (!name || !*name)
                        return SR_ERR_NA;
-               chip = ser_hid_chip_find_enum((char **)&name);
+               chip = ser_hid_chip_find_enum(&name);
                sr_dbg("DBG: %s(), chip %d", __func__, chip);
                if (chip == SER_HID_CHIP_UNKNOWN)
                        return SR_ERR_NA;
@@ -1058,7 +1059,7 @@ static int ser_hid_chip_search(enum ser_hid_chip_t *chip_ref,
                sr_dbg("DBG: %s(), name %s", __func__, name);
                if (!name || !*name)
                        return SR_ERR_NA;
-               chip = ser_hid_chip_find_enum((char **)&name);
+               chip = ser_hid_chip_find_enum(&name);
                sr_dbg("DBG: %s(), chip %d", __func__, chip);
                if (chip == SER_HID_CHIP_UNKNOWN)
                        return SR_ERR_NA;