udev: do not discard const qualifier

diff --git a/src/udev/udev-builtin-keyboard.c b/src/udev/udev-builtin-keyboard.c
index 665bf948a5dada0018a91f94f4cc3fd927bcda9a..eb980cb980584b3261fedff94a34a1e8ea4db4d9 100644 (file)
--- a/src/udev/udev-builtin-keyboard.c
+++ b/src/udev/udev-builtin-keyboard.c
@@ -87,7 +87,7 @@ static int map_keycode(sd_device *dev, int fd, int scancode, const char *keycode
         return 0;
 }
 
-static char* parse_token(const char *current, int32_t *val_out) {
+static const char* parse_token(const char *current, int32_t *val_out) {
         char *next;
         int32_t val;
 
@@ -109,7 +109,7 @@ static char* parse_token(const char *current, int32_t *val_out) {
 
 static int override_abs(sd_device *dev, int fd, unsigned evcode, const char *value) {
         struct input_absinfo absinfo;
-        char *next;
+        const char *next;
         int r;
 
         r = ioctl(fd, EVIOCGABS(evcode), &absinfo);