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-rw-r--r--fs/bio.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/bio.c b/fs/bio.c
index 098c12b2d60..6a0b9ad8f8c 100644
--- a/fs/bio.c
+++ b/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++) {