powerpc/cell: Add missing of_node_put()s in cbe_regs.c

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There are several bugs as following:

(1) In cbe_get_be_node(), hold the reference returned by of_find_xxx and
    of_get_xxx OF APIs and use it to call of_node_put().
(2) In cbe_fill_regs_map(), same as above.
(3) In cbe_regs_init(), during the iteration of for_each_node_by_type(),
    the refcount of 'cpu' will be automatically increased and decreased.
    However, there is a reference escaped out into 'map->cpu_node' and
    it should be properly handled.

Signed-off-by: Liang He <windhl@126.com>
[mpe: Drop references before pointer equality test in cbe_get_be_node()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220701144949.252364-1-windhl@126.com

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Liang He 2022-07-01 22:49:48 +08:00 • committed by Michael Ellerman

parent d9e1c6104d

commit ad4b323693

1 changed files with 27 additions and 10 deletions

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arch/powerpc/platforms/cell/cbe_regs.c

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