diff --git a/[refs] b/[refs]
index 4d28ce2b197e..8ac1fde4a011 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 16070428d389ff47aa3476b0911179ad90c640a2
+refs/heads/master: 991721572ef2140c6411894aebefd3377e71a9e7
diff --git a/trunk/fs/bio.c b/trunk/fs/bio.c
index 098c12b2d60a..6a0b9ad8f8c9 100644
--- a/trunk/fs/bio.c
+++ b/trunk/fs/bio.c
@@ -654,9 +654,10 @@ static struct bio *__bio_map_user_iov(request_queue_t *q,
 				     write_to_vm, 0, &pages[cur_page], NULL);
 		up_read(&current->mm->mmap_sem);
 
-		if (ret < local_nr_pages)
+		if (ret < local_nr_pages) {
+			ret = -EFAULT;
 			goto out_unmap;
-
+		}
 
 		offset = uaddr & ~PAGE_MASK;
 		for (j = cur_page; j < page_limit; j++) {