s390/setup: call memblock_reserve only for size > 0

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reserve_initrd currently calls memblock_reserve even if the to be
reserved size is zero. Even though the memblock core code can handle
this correctly, it still yields confusing debug messages if
memblock debugging is enabled.
Therefore make sure to not call memblock_reserve with a size of zero.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Heiko Carstens 2016-12-27 14:47:42 +01:00 • committed by Martin Schwidefsky

parent 5064cd3506

commit 7be5e359a7

1 changed files with 2 additions and 0 deletions

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arch/s390/kernel/setup.c

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