1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index a60acf8d385a..a66428d860fe 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -478,7 +478,14 @@ static int disk_resume(struct dirty_log *log)
                 DMWARN("%s: Failed to read header on mirror log device",
                        lc->log_dev->name);
                 fail_log_device(lc);
-                return r;
+                /*
+                 * If the log device cannot be read, we must assume
+                 * all regions are out-of-sync.  If we simply return
+                 * here, the state will be uninitialized and could
+                 * lead us to return 'in-sync' status for regions
+                 * that are actually 'out-of-sync'.
+                 */
+                lc->header.nr_regions = 0;
         }
 
         /* set or clear any new bits -- device has grown */