Messages in this thread | | | Date | Fri, 16 Nov 2007 13:37:14 -0800 | From | Andrew Morton <> | Subject | Re: [Patch] mm/sparse.c: Check the return value of sparse_index_alloc(). |
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On Thu, 15 Nov 2007 21:54:28 +0800 WANG Cong <xiyou.wangcong@gmail.com> wrote:
> > 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> > > --- > > 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
Sure, but both callers of sparse_index_init() ignore its return value anyway. - 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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