dm dedup: check return from dm_set_target_max_io_len

diff --git a/drivers/md/dm-dedup-target.c b/drivers/md/dm-dedup-target.c
index 699af961d32b4a4223a2939c39990698cd0326e5..00a69585501aedc291ba97f885e1ae37381bdffe 100644 (file)
--- a/drivers/md/dm-dedup-target.c
+++ b/drivers/md/dm-dedup-target.c
@@ -684,7 +684,10 @@ static int dm_dedup_ctr_fn(struct dm_target *ti, unsigned int argc, char **argv)
        dc->flushrq = flushrq;
        dc->writes_after_flush = 0;
 
-       dm_set_target_max_io_len(ti, dc->sectors_per_block);
+       r = dm_set_target_max_io_len(ti, dc->sectors_per_block);
+       if (r)
+               goto bad_kvstore_init;
+
        ti->private = dc;
 
        da->meta_dev = da->data_dev = NULL;