[PATCH 2/3] vhost: initialize log eventfd context pointer

vq log eventfd context pointer needs to be initialized, otherwise
operation may fail or oops if log is enabled but log eventfd not set by
userspace.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/vhost/vhost.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c767279..d4f8fdf 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c

@@ -121,6 +121,7 @@ static void vhost_vq_reset(struct vhost_dev *dev,
 	vq->kick = NULL;
 	vq->call_ctx = NULL;
 	vq->call = NULL;
+	vq->log_ctx = NULL;
 }
 
 long vhost_dev_init(struct vhost_dev *dev,

-- 
1.7.0.18.g0d53a5