From: Andrew Morton <akpm@linux-foundation.org>

drivers/md/dm-exception-store.c: In function 'persistent_read_metadata':
drivers/md/dm-exception-store.c:452: warning: 'new_snapshot' may be used uninitialized in this function

Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/md/dm-exception-store.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/md/dm-exception-store.c~dm-persistent_read_metadata-warning-fix drivers/md/dm-exception-store.c
--- a/drivers/md/dm-exception-store.c~dm-persistent_read_metadata-warning-fix
+++ a/drivers/md/dm-exception-store.c
@@ -449,7 +449,7 @@ static void persistent_destroy(struct ex
 
 static int persistent_read_metadata(struct exception_store *store)
 {
-	int r, new_snapshot;
+	int r, uninitialized_var(new_snapshot);
 	struct pstore *ps = get_info(store);
 
 	/*
_