tv_tpg->tv_tpg_vhost_count should be protected by tv_tpg->tv_tpg_mutex.
Signed-off-by: Asias He <asias@xxxxxxxxxx>
Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
---
drivers/vhost/tcm_vhost.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
index 9951297..b3e50d7 100644
--- a/drivers/vhost/tcm_vhost.c
+++ b/drivers/vhost/tcm_vhost.c
@@ -860,9 +860,11 @@ static int vhost_scsi_clear_endpoint(
if (!tv_tpg)
continue;
+ mutex_lock(&tv_tpg->tv_tpg_mutex);
tv_tport = tv_tpg->tport;
if (!tv_tport) {
ret = -ENODEV;
+ mutex_unlock(&tv_tpg->tv_tpg_mutex);
goto err;
}
@@ -872,11 +874,13 @@ static int vhost_scsi_clear_endpoint(
tv_tport->tport_name, tv_tpg->tport_tpgt,
t->vhost_wwpn, t->vhost_tpgt);
ret = -EINVAL;
+ mutex_unlock(&tv_tpg->tv_tpg_mutex);
goto err;
}
tv_tpg->tv_tpg_vhost_count--;
vs->vs_tpg[target] = NULL;
vs->vs_endpoint = false;
+ mutex_unlock(&tv_tpg->tv_tpg_mutex);
}
mutex_unlock(&vs->dev.mutex);
return 0;
--
1.8.1.4
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