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-rw-r--r--block/nbd.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/nbd.c b/block/nbd.c
index 52ebc8b2f5..b9d4f935e0 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -275,7 +275,8 @@ static bool nbd_client_will_reconnect(BDRVNBDState *s)
* Return failure if the server's advertised options are incompatible with the
* client's needs.
*/
-static int nbd_handle_updated_info(BlockDriverState *bs, Error **errp)
+static int coroutine_fn GRAPH_RDLOCK
+nbd_handle_updated_info(BlockDriverState *bs, Error **errp)
{
BDRVNBDState *s = (BDRVNBDState *)bs->opaque;
int ret;