mm/sparse.c: improve the error handling for sparse_add_one_section()
authorWANG Cong <xiyou.wangcong@gmail.com>
Tue, 18 Dec 2007 00:19:59 +0000 (16:19 -0800)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 18 Dec 2007 03:28:16 +0000 (19:28 -0800)
commitbbd0682596f7a434467ee551fee18d5f0b818539
tree3afd7cbb301125fc21799a5fd9a70c2b5d700f17
parentaf0cd5a7c3cded50c25e98acd94912d17a0eb914
mm/sparse.c: improve the error handling for sparse_add_one_section()

Improve the error handling for mm/sparse.c::sparse_add_one_section().  And I
see no reason to check 'usemap' until holding the 'pgdat_resize_lock'.

[geoffrey.levand@am.sony.com: sparse_index_init() returns -EEXIST]
Cc: Christoph Lameter <clameter@sgi.com>
Acked-by: Dave Hansen <haveblue@us.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/sparse.c