[dpdk-dev] [PATCH v2 03/17] vhost: fix error handling when mem table gets updated

[Maxime Coquelin]

When the memory table gets updated, the rings addresses need
to be translated again. If it fails, we need to exit cleanly
by unmapping memory regions.

Fixes: d5022533c20a ("vhost: retranslate vring addr when memory table changes")
Cc: sta...@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
 lib/librte_vhost/vhost_user.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index ce0ac0098..c669d3c0a 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -964,7 +964,8 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct 
VhostUserMsg *msg)
 
                        dev = translate_ring_addresses(dev, i);
                        if (!dev)
-                               return VH_RESULT_ERR;
+                               goto err_mmap;
+
 
                        *pdev = dev;
                }
-- 
2.17.1