Convert atexit users to exit_notifier

All of these users have global state so we really don't see a benefit from
exit_notifier.  However, using exit_notifier means that there's one less
justification for having global state in the first place.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/hw/xen_machine_pv.c b/hw/xen_machine_pv.c
index 162f88d..abfa02c 100644
--- a/hw/xen_machine_pv.c
+++ b/hw/xen_machine_pv.c
@@ -42,6 +42,7 @@ static void xen_init_pv(ram_addr_t ram_size,
     CPUState *env;
     DriveInfo *dinfo;
     int i;
+    static Notifier exit_notifier = { .notify = xen_config_cleanup };
 
     /* Initialize a dummy CPU */
     if (cpu_model == NULL) {
@@ -105,7 +106,7 @@ static void xen_init_pv(ram_addr_t ram_size,
     }
 
     /* config cleanup hook */
-    atexit(xen_config_cleanup);
+    exit_notifier_addr(&exit_notifier);
 
     /* setup framebuffer */
     xen_init_display(xen_domid);