Commit:     af0cd5a7c3cded50c25e98acd94912d17a0eb914
Parent:     bd6cba53c524dccf72900435d29722b22f61d835
Author:     WANG Cong <[EMAIL PROTECTED]>
AuthorDate: Mon Dec 17 16:19:58 2007 -0800
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Mon Dec 17 19:28:16 2007 -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 <[EMAIL PROTECTED]>
    Cc: Christoph Lameter <[EMAIL PROTECTED]>
    Cc: Rik van Riel <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
 mm/sparse.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index e06f514..d245e59 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)
                return -EEXIST;
        section = sparse_index_alloc(nid);
+       if (!section)
+               return -ENOMEM;
         * This lock keeps two different sections from
         * reallocating for the same index
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