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-rw-r--r--drivers/vhost/net.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index cd36f5ff2255..0868569d7124 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -519,13 +519,12 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
519 519
520 /* start polling new socket */ 520 /* start polling new socket */
521 oldsock = vq->private_data; 521 oldsock = vq->private_data;
522 if (sock == oldsock) 522 if (sock != oldsock){
523 goto done; 523 vhost_net_disable_vq(n, vq);
524 rcu_assign_pointer(vq->private_data, sock);
525 vhost_net_enable_vq(n, vq);
526 }
524 527
525 vhost_net_disable_vq(n, vq);
526 rcu_assign_pointer(vq->private_data, sock);
527 vhost_net_enable_vq(n, vq);
528done:
529 if (oldsock) { 528 if (oldsock) {
530 vhost_net_flush_vq(n, index); 529 vhost_net_flush_vq(n, index);
531 fput(oldsock->file); 530 fput(oldsock->file);