@tmp that was copied just above is leaked on plain return. The issue is found by Coverity. Patch that inroduced a leak: d4439a6b8 : src: adopt to VIR_DRV_SUPPORTS_FEATURE return -1 Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)virtuozzo.com&gt; --- src/libvirt-domain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index 2f9081a..c9f8ffd 100644 --- a/src/libvirt-domain.c +++ b/src/libvirt-domain.c @@ -3022,7 +3022,7 @@ virDomainMigrateVersion3Full(virDomainPtr domain, ret = VIR_DRV_SUPPORTS_FEATURE(domain->conn->driver, domain->conn, VIR_DRV_FEATURE_MIGRATE_CHANGE_PROTECTION); if (ret < 0) - return NULL; + goto done; if (ret) protection = VIR_MIGRATE_CHANGE_PROTECTION;