diff mbox

[PULL,07/23] exec: make address_space_cache_destroy idempotent

Message ID 1487361200-29966-8-git-send-email-mst@redhat.com
State New
Headers show

Commit Message

Michael S. Tsirkin Feb. 17, 2017, 7:54 p.m. UTC 
From: Paolo Bonzini <pbonzini@redhat.com>

Clear cache->mr so that address_space_cache_destroy does nothing
the second time it is called.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 exec.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/exec.c b/exec.c
index 6fa337b..865a1e8 100644
--- a/exec.c
+++ b/exec.c
@@ -3166,6 +3166,7 @@  void address_space_cache_destroy(MemoryRegionCache *cache)
         xen_invalidate_map_cache_entry(cache->ptr);
     }
     memory_region_unref(cache->mr);
+    cache->mr = NULL;
 }
 
 /* Called from RCU critical section.  This function has the same