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-rw-r--r--drivers/md/dm-table.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 7b6c3ee9e755..8820931ec7d2 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1342,7 +1342,7 @@ void dm_table_event(struct dm_table *t)
}
EXPORT_SYMBOL(dm_table_event);
-sector_t dm_table_get_size(struct dm_table *t)
+inline sector_t dm_table_get_size(struct dm_table *t)
{
return t->num_targets ? (t->highs[t->num_targets - 1] + 1) : 0;
}
@@ -1367,6 +1367,9 @@ struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector)
unsigned int l, n = 0, k = 0;
sector_t *node;
+ if (unlikely(sector >= dm_table_get_size(t)))
+ return &t->targets[t->num_targets];
+
for (l = 0; l < t->depth; l++) {
n = get_child(n, k);
node = get_node(t, l, n);