Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
--- linux-2.6.12-rc2.org/fs/buffer.c	2005-04-27 07:19:44.000000000 -0700
+++ linux-2.6.12-rc2/fs/buffer.c	2005-04-27 07:20:34.000000000 -0700
@@ -2917,7 +2917,7 @@ drop_buffers(struct page *page, struct b
 
 	bh = head;
 	do {
-		if (buffer_write_io_error(bh))
+		if (buffer_write_io_error(bh) && page->mapping)
 			set_bit(AS_EIO, &page->mapping->flags);
 		if (buffer_busy(bh))
 			goto failed;