From: Paolo Bonzini <pbonz...@redhat.com>
Make it easy to unregister a MemoryListener without tracking whether it
had been registered before.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
memory.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/memory.c b/memory.c
index 6c58373..ed8b5aa 100644
--- a/memory.c
+++ b/memory.c
@@ -2371,8 +2371,13 @@ void memory_listener_register(MemoryListener *listener,
AddressSpace *as)
void memory_listener_unregister(MemoryListener *listener)
{
+ if (!listener->address_space) {
+ return;
+ }
+
QTAILQ_REMOVE(&memory_listeners, listener, link);
QTAILQ_REMOVE(&listener->address_space->listeners, listener, link_as);
+ listener->address_space = NULL;
}
void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name)
--
MST
