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Wed, 22 Nov 2023 08:40:18 -0800 (PST) From: Frediano Ziglio To: xen-devel@lists.xenproject.org Cc: Frediano Ziglio , Tamas K Lengyel , Jan Beulich , Andrew Cooper , George Dunlap , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [PATCH] x86/mem_sharing: Release domain if we are not able to enable memory sharing Date: Wed, 22 Nov 2023 16:39:55 +0000 Message-Id: <20231122163955.14555-1-frediano.ziglio@cloud.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @cloud.com) X-ZM-MESSAGEID: 1700671245726100001 Content-Type: text/plain; charset="utf-8" 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 -- I didn't manage to check the change, I was just looking at the code for different purposes. Acked-by: Tamas K Lengyel Reviewed-by: Andrew Cooper --- 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) =20 if ( !mem_sharing_enabled(d) && (rc =3D mem_sharing_control(d, true, 0)) ) - return rc; + goto out; =20 switch ( mso.op ) { --=20 2.34.1