qemu-kvm/kvm-vhost-vdpa-fix-improper-cleanup-in-net_init_vhost_vd.patch

From c10ef6f79d4a4c8ccc5901b25234501c621e4e04 Mon Sep 17 00:00:00 2001
From: Si-Wei Liu <si-wei.liu@oracle.com>
Date: Fri, 6 May 2022 19:28:14 -0700
Subject: [PATCH 16/24] vhost-vdpa: fix improper cleanup in net_init_vhost_vdpa
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RH-Author: Jason Wang <jasowang@redhat.com>
RH-MergeRequest: 187: Multiqueue fixes for vhost-vDPA
RH-Commit: [3/7] b3b658dcb4695defe1fdb199570fb984291e8e21
RH-Bugzilla: 2069946
RH-Acked-by: Eugenio Pérez <eperezma@redhat.com>
RH-Acked-by: Cindy Lu <lulu@redhat.com>
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>

... such that no memory leaks on dangling net clients in case of
error.

Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <1651890498-24478-4-git-send-email-si-wei.liu@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 9bd055073e375c8a0d7ebce925e05d914d69fc7f)
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 net/vhost-vdpa.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 25dd6dd975..814f704687 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -306,7 +306,9 @@ int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
 
 err:
     if (i) {
-        qemu_del_net_client(ncs[0]);
+        for (i--; i >= 0; i--) {
+            qemu_del_net_client(ncs[i]);
+        }
     }
     qemu_close(vdpa_device_fd);
     g_free(ncs);
-- 
2.35.3