In case it's not possible to enable memory sharing (mem_sharing_control
fails) we just return the error code without releasing the domain
acquired some lines above by rcu_lock_live_remote_domain_by_id.
Signed-off-by: Frediano Ziglio <frediano.zig...@cloud.com>
--
I didn't manage to check the change, I was just looking at the code
for different purposes.
---
xen/arch/x86/mm/mem_sharing.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c
index 9647e651f9..4f810706a3 100644
--- a/xen/arch/x86/mm/mem_sharing.c
+++ b/xen/arch/x86/mm/mem_sharing.c
@@ -2013,7 +2013,7 @@ int
mem_sharing_memop(XEN_GUEST_HANDLE_PARAM(xen_mem_sharing_op_t) arg)
if ( !mem_sharing_enabled(d) &&
(rc = mem_sharing_control(d, true, 0)) )
- return rc;
+ goto out;
switch ( mso.op )
{
--
2.34.1
