Update tcod/sdl/joystick.py

Co-authored-by: Kyle Benesch <4b796c65+github@gmail.com>

Author: pinghedm

tcod/sdl/joystick.py

@@ -356,13 +356,8 @@ def _get_instance_ids() -> list[int]:
     """
     init()
     count = ffi.new("int*")
-    joysticks_p = lib.SDL_GetJoysticks(count)  # SDL-owned SDL_JoystickID array.
-    if not joysticks_p:
-        return []
-    try:
-        return [int(joysticks_p[i]) for i in range(int(count[0]))]
-    finally:
-        lib.SDL_free(joysticks_p)
+    joysticks_p = _check_p(ffi.gc(lib.SDL_GetJoysticks(count), lib.SDL_free))  # SDL_JoystickID array
+    return [int(i) for i in joysticks_p[0:count[0]]]
 
 
 def get_joysticks() -> list[Joystick]: