dm snapshot: avoid else clause in persistent_read_metadata

Minor code touch-up.  We don't need the 'else'.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 0c74642..7e855fb 100644 (file)
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -552,35 +552,31 @@ static int persistent_read_metadata(struct dm_exception_store *store,
                ps->current_area = 0;
                zero_memory_area(ps);
                r = zero_disk_area(ps, 0);
-               if (r) {
+               if (r)
                        DMWARN("zero_disk_area(0) failed");
-                       return r;
-               }
-       } else {
-               /*
-                * Sanity checks.
-                */
-               if (ps->version != SNAPSHOT_DISK_VERSION) {
-                       DMWARN("unable to handle snapshot disk version %d",
-                              ps->version);
-                       return -EINVAL;
-               }
+               return r;
+       }
+       /*
+        * Sanity checks.
+        */
+       if (ps->version != SNAPSHOT_DISK_VERSION) {
+               DMWARN("unable to handle snapshot disk version %d",
+                      ps->version);
+               return -EINVAL;
+       }
 
-               /*
-                * Metadata are valid, but snapshot is invalidated
-                */
-               if (!ps->valid)
-                       return 1;
+       /*
+        * Metadata are valid, but snapshot is invalidated
+        */
+       if (!ps->valid)
+               return 1;
 
-               /*
-                * Read the metadata.
-                */
-               r = read_exceptions(ps, callback, callback_context);
-               if (r)
-                       return r;
-       }
+       /*
+        * Read the metadata.
+        */
+       r = read_exceptions(ps, callback, callback_context);
 
-       return 0;
+       return r;
 }
 
 static int persistent_prepare_exception(struct dm_exception_store *store,