From: Mike Snitzer <snitzer@redhat.com>
Date: Mon, 22 Sep 2014 15:29:43 +0000 (-0400)
Subject: dm dedup: check return from dm_set_target_max_io_len
X-Git-Url: https://git.fsl.cs.sunysb.edu/?a=commitdiff_plain;h=b7a78ac44866c2140e9be132ed7016a28f9d9893;p=linux-dmdedup.git

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 699af961d32..00a69585501 100644
--- 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;