Commit af0cd5a7 authored Dec 17, 2007 by WANG Cong Committed by Linus Torvalds Dec 17, 2007

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>

parent bd6cba53

mm/sparse.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -83,6 +83,8 @@ static int __meminit sparse_index_init(unsigned long section_nr, int nid)
		return -EEXIST;

		section = sparse_index_alloc(nid);
		if (!section)
		return -ENOMEM;
		/*
		* This lock keeps two different sections from
		* reallocating for the same index