From a7dfc5954e3d43bd7c11738f678adb0c38eb93f1 Mon Sep 17 00:00:00 2001
From: Mike Christie <mchristi@redhat.com>
Date: Mon, 23 Jul 2018 14:07:48 -0500
Subject: [PATCH] scsi: tcmu: unmap if dev is configured
Git-commit: dc335a995527fb1ee9ec5649162b22cd1ce728ee
Patch-mainline: v4.19-rc1
References: bsc#1118978

The tcmu dev is added to the list of tcmu devices during configuration.  At
this time the tcmu setup has completed, but lio core has not completed its
setup. The device is not yet usable so do not try to unmap blocks from it

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: David Disseldorp <ddiss@suse.de>

---
 drivers/target/target_core_user.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 643aff374b50..c57f99eea93c 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -2608,6 +2608,11 @@ static void find_free_blocks(void)
 	list_for_each_entry(udev, &root_udev, node) {
 		mutex_lock(&udev->cmdr_lock);
 
+		if (!target_dev_configured(&udev->se_dev)) {
+			mutex_unlock(&udev->cmdr_lock);
+			continue;
+		}
+
 		/* Try to complete the finished commands first */
 		tcmu_handle_completions(udev);
 
-- 
2.13.7