vhost: fix deadlock in driver unregister

[dpdk.git] / lib / librte_vhost / socket.c

diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
index 9cf34ad..9883b04 100644 (file)
--- a/lib/librte_vhost/socket.c
+++ b/lib/librte_vhost/socket.c
@@ -961,13 +961,13 @@ rte_vhost_driver_unregister(const char *path)
        int count;
        struct vhost_user_connection *conn, *next;
 
+again:
        pthread_mutex_lock(&vhost_user.mutex);
 
        for (i = 0; i < vhost_user.vsocket_cnt; i++) {
                struct vhost_user_socket *vsocket = vhost_user.vsockets[i];
 
                if (!strcmp(vsocket->path, path)) {
-again:
                        pthread_mutex_lock(&vsocket->conn_mutex);
                        for (conn = TAILQ_FIRST(&vsocket->conn_list);
                             conn != NULL;
@@ -983,6 +983,7 @@ again:
                                                  conn->connfd) == -1) {
                                        pthread_mutex_unlock(
                                                        &vsocket->conn_mutex);
+                                       pthread_mutex_unlock(&vhost_user.mutex);
                                        goto again;
                                }