dm persistent data: eliminate unnecessary return values
dm_bm_unlock and dm_tm_unlock return an integer value but the returned
value is always 0. The calling code sometimes checks the return value
and sometimes doesn't.
Eliminate these unnecessary return values and also the checks for them.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-era-target.c b/drivers/md/dm-era-target.c
index 0119ebf..665bf32 100644
--- a/drivers/md/dm-era-target.c
+++ b/drivers/md/dm-era-target.c
@@ -343,7 +343,9 @@
}
}
- return dm_bm_unlock(b);
+ dm_bm_unlock(b);
+
+ return 0;
}
/*----------------------------------------------------------------*/
@@ -582,7 +584,9 @@
md->metadata_snap = le64_to_cpu(disk->metadata_snap);
md->archived_writesets = true;
- return dm_bm_unlock(sblock);
+ dm_bm_unlock(sblock);
+
+ return 0;
bad:
dm_bm_unlock(sblock);
@@ -1046,12 +1050,7 @@
md->metadata_snap = dm_block_location(clone);
- r = dm_tm_unlock(md->tm, clone);
- if (r) {
- DMERR("%s: couldn't unlock clone", __func__);
- md->metadata_snap = SUPERBLOCK_LOCATION;
- return r;
- }
+ dm_tm_unlock(md->tm, clone);
return 0;
}