Merge pull request #207 from versusvoid/fix-double-free

Fix double free

types/wlr_seat.c

@@ -262,6 +262,8 @@ static void pointer_surface_destroy_notify(struct wl_listener *listener,
 		void *data) {
 	struct wlr_seat_pointer_state *state = wl_container_of(
 			listener, state, surface_destroy);
+	wl_list_remove(&state->surface_destroy.link);
+	wl_list_init(&state->surface_destroy.link);
 	state->focused_surface = NULL;
 	wlr_seat_pointer_clear_focus(state->wlr_seat);
 }
@@ -270,6 +272,8 @@ static void pointer_resource_destroy_notify(struct wl_listener *listener,
 		void *data) {
 	struct wlr_seat_pointer_state *state = wl_container_of(
 			listener, state, resource_destroy);
+	wl_list_remove(&state->resource_destroy.link);
+	wl_list_init(&state->resource_destroy.link);
 	state->focused_surface = NULL;
 	wlr_seat_pointer_clear_focus(state->wlr_seat);
 }
@@ -499,6 +503,8 @@ static void keyboard_surface_destroy_notify(struct wl_listener *listener,
 		void *data) {
 	struct wlr_seat_keyboard_state *state = wl_container_of(
 			listener, state, surface_destroy);
+	wl_list_remove(&state->surface_destroy.link);
+	wl_list_init(&state->surface_destroy.link);
 	state->focused_surface = NULL;
 	wlr_seat_keyboard_clear_focus(state->wlr_seat);
 }
@@ -507,6 +513,8 @@ static void keyboard_resource_destroy_notify(struct wl_listener *listener,
 		void *data) {
 	struct wlr_seat_keyboard_state *state = wl_container_of(
 			listener, state, resource_destroy);
+	wl_list_remove(&state->resource_destroy.link);
+	wl_list_init(&state->resource_destroy.link);
 	state->focused_surface = NULL;
 	wlr_seat_keyboard_clear_focus(state->wlr_seat);
 }