The only thing that desktop_shell_client_destroy() do is setting
shell->child.client NULL, and is also done by desktop_shell_sigchld().
Getting rid of it and the shell client's destroy_listener is safe and
avoids a handful of race conditions.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=82957
Signed-off-by: Boyan Ding <[email protected]>
---
 desktop-shell/shell.c | 16 ----------------
 desktop-shell/shell.h |  1 -
 2 files changed, 17 deletions(-)

diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
index 99f3343..07700cf 100644
--- a/desktop-shell/shell.c
+++ b/desktop-shell/shell.c
@@ -5322,17 +5322,6 @@ desktop_shell_sigchld(struct weston_process *process, 
int status)
 }
 
 static void
-desktop_shell_client_destroy(struct wl_listener *listener, void *data)
-{
-       struct desktop_shell *shell;
-
-       shell = container_of(listener, struct desktop_shell,
-                            child.client_destroy_listener);
-
-       shell->child.client = NULL;
-}
-
-static void
 launch_desktop_shell_process(void *data)
 {
        struct desktop_shell *shell = data;
@@ -5344,11 +5333,6 @@ launch_desktop_shell_process(void *data)
 
        if (!shell->child.client)
                weston_log("not able to start %s\n", shell->client);
-
-       shell->child.client_destroy_listener.notify =
-               desktop_shell_client_destroy;
-       wl_client_add_destroy_listener(shell->child.client,
-                                      &shell->child.client_destroy_listener);
 }
 
 static void
diff --git a/desktop-shell/shell.h b/desktop-shell/shell.h
index c6ea328..3ddaa89 100644
--- a/desktop-shell/shell.h
+++ b/desktop-shell/shell.h
@@ -137,7 +137,6 @@ struct desktop_shell {
                struct weston_process process;
                struct wl_client *client;
                struct wl_resource *desktop_shell;
-               struct wl_listener client_destroy_listener;
 
                unsigned deathcount;
                uint32_t deathstamp;
-- 
2.1.0


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