1 files changed, 3 insertions, 2 deletions

diff --git a/fs/buffer.c b/fs/buffer.c
index 36d66653b931..ad5938ca357c 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -921,6 +921,7 @@ init_page_buffers(struct page *page, struct block_device *bdev,
         struct buffer_head *head = page_buffers(page);
         struct buffer_head *bh = head;
         int uptodate = PageUptodate(page);
+        sector_t end_block = blkdev_max_block(I_BDEV(bdev->bd_inode));
 
         do {
                 if (!buffer_mapped(bh)) {
@@ -929,7 +930,8 @@ init_page_buffers(struct page *page, struct block_device *bdev,
                         bh->b_blocknr = block;
                         if (uptodate)
                                 set_buffer_uptodate(bh);
-                        set_buffer_mapped(bh);
+                        if (block < end_block)
+                                set_buffer_mapped(bh);
                 }
                 block++;
                 bh = bh->b_this_page;
@@ -985,7 +987,6 @@ grow_dev_page(struct block_device *bdev, sector_t block,
         return page;
 
 failed:
-        BUG();
         unlock_page(page);
         page_cache_release(page);
         return NULL;