After reading a page, we need to check whether there is any error.

Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
 fs/f2fs/data.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 89a978c..11b2111 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -448,6 +448,14 @@ repeat:
 
                /* wait for read completion */
                lock_page(page);
+               if (unlikely(!PageUptodate(page))) {
+                       f2fs_put_page(page, 1);
+                       return ERR_PTR(-EIO);
+               }
+               if (unlikely(page->mapping != mapping)) {
+                       f2fs_put_page(page, 1);
+                       goto repeat;
+               }
        }
 got_it:
        if (new_i_size && i_size_read(inode) <
-- 
2.6.3

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