tree fcdf2cef80bb8846a8171333e78425abf0c3a326
parent bd6cba53c524dccf72900435d29722b22f61d835
author WANG Cong <xiyou.wangcong@gmail.com> 1197937198 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1197948496 -0800

mm/sparse.c: check the return value of sparse_index_alloc()

Since sparse_index_alloc() can return NULL on memory allocation failure,
we must deal with the failure condition when calling it.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>