diff options
author | WANG Cong <xiyou.wangcong@gmail.com> | 2007-12-17 19:19:58 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-17 22:28:16 -0500 |
commit | af0cd5a7c3cded50c25e98acd94912d17a0eb914 (patch) | |
tree | fcdf2cef80bb8846a8171333e78425abf0c3a326 /mm | |
parent | bd6cba53c524dccf72900435d29722b22f61d835 (diff) |
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>
Diffstat (limited to 'mm')
-rw-r--r-- | mm/sparse.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index e06f514fe04f..d245e59048a8 100644 --- a/mm/sparse.c +++ b/mm/sparse.c | |||
@@ -83,6 +83,8 @@ static int __meminit sparse_index_init(unsigned long section_nr, int nid) | |||
83 | return -EEXIST; | 83 | return -EEXIST; |
84 | 84 | ||
85 | section = sparse_index_alloc(nid); | 85 | section = sparse_index_alloc(nid); |
86 | if (!section) | ||
87 | return -ENOMEM; | ||
86 | /* | 88 | /* |
87 | * This lock keeps two different sections from | 89 | * This lock keeps two different sections from |
88 | * reallocating for the same index | 90 | * reallocating for the same index |