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-rw-r--r--drivers/md/dm-bio-prison-v1.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-bio-prison-v1.c b/drivers/md/dm-bio-prison-v1.c
index 92afdca760..9ab32abe5e 100644
--- a/drivers/md/dm-bio-prison-v1.c
+++ b/drivers/md/dm-bio-prison-v1.c
@@ -26,7 +26,7 @@ struct prison_region {
struct dm_bio_prison {
mempool_t cell_pool;
unsigned int num_locks;
- struct prison_region regions[];
+ struct prison_region regions[] __counted_by(num_locks);
};
static struct kmem_cache *_cell_cache;