Messages in this thread Patch in this message | | | Date | Thu, 15 Nov 2007 21:54:28 +0800 | From | WANG Cong <> | Subject | [Patch] mm/sparse.c: Check the return value of sparse_index_alloc(). |
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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>
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diff --git a/Makefile b/Makefile 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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