powerpc/pseries: Improve error code on reconfiguration notifier failure

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Reconfiguration notifier call for device node may fail by several reasons,
but it always assumes kmalloc failures.

This enables reconfiguration notifier call chain to get the actual error
code rather than -ENOMEM by converting all reconfiguration notifier calls
to return encapsulate error code with notifier_from_errno().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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This commit is contained in:

Akinobu Mita 2011-06-21 03:35:56 +00:00 • committed by Benjamin Herrenschmidt

parent 3aef19f0a1

commit de2780a3d8

4 changed files with 12 additions and 26 deletions

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8

arch/powerpc/kernel/prom.c

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10

arch/powerpc/platforms/pseries/hotplug-cpu.c

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16

arch/powerpc/platforms/pseries/hotplug-memory.c

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4

arch/powerpc/platforms/pseries/reconfig.c

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