input_cmd_scroll_button: utilize mouse btn helpers

This modifies `input_cmd_scroll_button` to utilize the mouse button
helper `get_mouse_button` when parsing the button. x11 axis buttons are
not supported with this command and `CMD_INVALID` will be returned, but
all other x11 buttons, button event names, and button event codes should
be working

1 files changed, 1 insertions, 1 deletions

diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index 9af7ef57..a69cccb4 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -1593,7 +1593,7 @@ uint32_t get_mouse_bindcode(const char *name, char **error) {
 
 uint32_t get_mouse_button(const char *name, char **error) {
         uint32_t button = get_mouse_bindsym(name, error);
-        if (!button && !error) {
+        if (!button && !*error) {
                 button = get_mouse_bindcode(name, error);
         }
         return button;