UBI: minor serialization fix

The @vol->upd_marker should be protected by the @ubi->device_mutex,
otherwise 'paranoid_check_volume()' complains sometimes because
vol->upd_marker is 1 while vtbl_rec->upd_marker is 0.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index dce1d92d8e9d..74fdc40c8627 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -70,8 +70,8 @@ static int set_update_marker(struct ubi_device *ubi, struct ubi_volume *vol)
 
         mutex_lock(&ubi->device_mutex);
         err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
-        mutex_unlock(&ubi->device_mutex);
         vol->upd_marker = 1;
+        mutex_unlock(&ubi->device_mutex);
         return err;
 }
 
@@ -111,8 +111,8 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol,
 
         mutex_lock(&ubi->device_mutex);
         err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
-        mutex_unlock(&ubi->device_mutex);
         vol->upd_marker = 0;
+        mutex_unlock(&ubi->device_mutex);
         return err;
 }