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authorMike Snitzer <snitzer@redhat.com>2015-02-13 00:25:05 +0300
committerMike Snitzer <snitzer@redhat.com>2015-02-14 03:32:58 +0300
commit145b9006a0ae753582902170ec1da49f89501845 (patch)
tree308ddcabcf6cb2527b16683f0a8c442f2b04e7cf /drivers/md/persistent-data
parent802ea9d8645d33d24b7b4cd4537c14f3e698bde0 (diff)
downloadlinux-145b9006a0ae753582902170ec1da49f89501845.tar.xz
dm space map disk: fix sm_disk_count_is_more_than_one()
dm_tm_shadow_block() is the only caller of dm_sm_count_is_more_than_one() which only ever operates on a metadata space-map. So in practice, sm_disk_count_is_more_than_one() isn't actually used (which explains why this bug never amounted to anything). But fix sm_disk_count_is_more_than_one() to properly set *result and return 0. Reported-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/persistent-data')
-rw-r--r--drivers/md/persistent-data/dm-space-map-disk.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c
index cfbf9617e465..ebb280a14325 100644
--- a/drivers/md/persistent-data/dm-space-map-disk.c
+++ b/drivers/md/persistent-data/dm-space-map-disk.c
@@ -78,7 +78,9 @@ static int sm_disk_count_is_more_than_one(struct dm_space_map *sm, dm_block_t b,
if (r)
return r;
- return count > 1;
+ *result = count > 1;
+
+ return 0;
}
static int sm_disk_set_count(struct dm_space_map *sm, dm_block_t b,