UBI: Don't exit from ubi_thread until kthread_should_stop() is true

If ubi_thread() exits but kthread_should_stop() is not true
then kthread_stop() will never return and cleanup thread
will forever stay in "D" state.

Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 05d70937b543..dcb6dac1dc54 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1396,7 +1396,8 @@ int ubi_thread(void *u)
                                 ubi_msg("%s: %d consecutive failures",
                                         ubi->bgt_name, WL_MAX_FAILURES);
                                 ubi_ro_mode(ubi);
-                                break;
+                                ubi->thread_enabled = 0;
+                                continue;
                         }
                 } else
                         failures = 0;