On Mon, Jul 10, 2017 at 04:06:48PM +0800, Zhiyong Yang wrote:
Exception handling is executed in the normal path and it will cause
vhost-user init failure.
Fixes: d6983a70e259("vhost: check return of pthread calls")

Reported-by: Lei Yao <lei.a....@intel.com>
Signed-off-by: Zhiyong Yang <zhiyong.y...@intel.com>
---
lib/librte_vhost/socket.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
index 57b86c0..9d2049c 100644
--- a/lib/librte_vhost/socket.c
+++ b/lib/librte_vhost/socket.c
@@ -668,7 +668,7 @@ rte_vhost_driver_register(const char *path, uint64_t flags)
        }

        vhost_user.vsockets[vhost_user.vsocket_cnt++] = vsocket;
-
+       goto out;
out_mutex:
        if (pthread_mutex_destroy(&vsocket->conn_mutex)) {
                RTE_LOG(ERR, VHOST_CONFIG,

Thanks for fixing this!

Sorry for introducing this bug, I was about to send this before I saw
your fix:
diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
index 57b86c0..b2158a7 100644
--- a/lib/librte_vhost/socket.c
+++ b/lib/librte_vhost/socket.c
@@ -668,6 +668,9 @@ rte_vhost_driver_register(const char *path, uint64_t flags)
       }

       vhost_user.vsockets[vhost_user.vsocket_cnt++] = vsocket;
+out:
+       pthread_mutex_unlock(&vhost_user.mutex);
+       return ret;

out_mutex:
       if (pthread_mutex_destroy(&vsocket->conn_mutex)) {
@@ -677,9 +680,7 @@ rte_vhost_driver_register(const char *path, uint64_t flags)
out_free:
       free(vsocket->path);
       free(vsocket);
-out:
       pthread_mutex_unlock(&vhost_user.mutex);
-
       return ret;
}

Both works fine, so I leave it up to the maintainers how to fix.
Reviewed-by: Jens Freimann <jfreim...@redhat.com>

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