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-rw-r--r--drivers/md/dm-snap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index b8e4d31124ea..751ec5ea1dbb 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -859,7 +859,8 @@ static uint32_t __minimum_chunk_size(struct origin *o)
if (o)
list_for_each_entry(snap, &o->snapshots, list)
- chunk_size = min(chunk_size, snap->store->chunk_size);
+ chunk_size = min_not_zero(chunk_size,
+ snap->store->chunk_size);
return (uint32_t) chunk_size;
}