migration: No need to return the size of the cache

[qemu.git] / migration / ram.c

diff --git a/migration/ram.c b/migration/ram.c
index 42f3b7cb2842bd1142ae61efa8c410c7fc029c13..997340c7c2b97c40a9f236cde1c9baa8cfc1459c 100644 (file)
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -112,15 +112,15 @@ static void XBZRLE_cache_unlock(void)
  * migration may be using the cache and might finish during this call,
  * hence changes to the cache are protected by XBZRLE.lock().
  *
- * Returns the new_size or negative in case of error.
+ * Returns 0 for success or -1 for error
  *
  * @new_size: new cache size
  * @errp: set *errp if the check failed, with reason
  */
-int64_t xbzrle_cache_resize(int64_t new_size, Error **errp)
+int xbzrle_cache_resize(int64_t new_size, Error **errp)
 {
     PageCache *new_cache;
-    int64_t ret;
+    int64_t ret = 0;
 
     /* Check for truncation */
     if (new_size != (size_t)new_size) {
@@ -138,7 +138,7 @@ int64_t xbzrle_cache_resize(int64_t new_size, Error **errp)
 
     if (new_size == migrate_xbzrle_cache_size()) {
         /* nothing to do */
-        return new_size;
+        return 0;
     }
 
     XBZRLE_cache_lock();
@@ -153,8 +153,6 @@ int64_t xbzrle_cache_resize(int64_t new_size, Error **errp)
         cache_fini(XBZRLE.cache);
         XBZRLE.cache = new_cache;
     }
-
-    ret = new_size;
 out:
     XBZRLE_cache_unlock();
     return ret;