From: Li Feng <fen...@smartx.com>
If the os is not installed and doesn't have the virtio guest driver,
the vhost dev isn't started, so the dev->vdev is NULL.
Reproduce: mount a Win 2019 iso, go into the install ui, then resize
the virtio-blk device, qemu crash.
Signed-off-by: Li Feng <fen...@smartx.com>
Message-Id: <20220919121816.3252223-1-fen...@smartx.com>
Reviewed-by: Raphael Norwitz <raphael.norw...@nutanix.com>
Reviewed-by: Kevin Wolf <kw...@redhat.com>
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
hw/block/vhost-user-blk.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
index 84902dde17..13bf5cc47a 100644
--- a/hw/block/vhost-user-blk.c
+++ b/hw/block/vhost-user-blk.c
@@ -97,6 +97,10 @@ static int vhost_user_blk_handle_config_change(struct
vhost_dev *dev)
VHostUserBlk *s = VHOST_USER_BLK(dev->vdev);
Error *local_err = NULL;
+ if (!dev->started) {
+ return 0;
+ }
+
ret = vhost_dev_get_config(dev, (uint8_t *)&blkcfg,
vdev->config_len, &local_err);
if (ret < 0) {
--
2.37.3
