X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=fs%2Fdax.c;h=3e457a16c7d1828f5a70c8c9f5dcad4a422cd2ad;hb=dfb632432a9b2548b5a4429598bb19edf58122f0;hp=c48a3a93ab2974785d3346bf98c59c4110be3122;hpb=158738ea75059fb4ddf812e2cb9fe1ff6e22bc70;p=tomoyo%2Ftomoyo-test1.git

diff --git a/fs/dax.c b/fs/dax.c
index c48a3a93ab29..3e457a16c7d1 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1271,8 +1271,9 @@ static s64 dax_unshare_iter(struct iomap_iter *iter)
 	if (ret < 0)
 		goto out_unlock;
 
-	ret = copy_mc_to_kernel(daddr, saddr, length);
-	if (ret)
+	if (copy_mc_to_kernel(daddr, saddr, length) == 0)
+		ret = length;
+	else
 		ret = -EIO;
 
 out_unlock: