diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index d79ea00894c1..3121a657774e 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2721,6 +2721,8 @@ static struct nvme_subsystem *__nvme_find_get_subsystem(const char *subsysnqn)
 	list_for_each_entry(subsys, &nvme_subsystems, entry) {
 		if (strcmp(subsys->subnqn, subsysnqn))
 			continue;
+		printk(KERN_ERR "%s(): subnqnq matched, list:%d\n", __func__,
+		    list_empty(&subsys->ctrls));
 		if (list_empty(&subsys->ctrls))
 			continue;
 		if (!kref_get_unless_zero(&subsys->ref))