s390/mm: return key via pointer in get_guest_storage_key

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Let's just split returning the key and reporting errors. This makes calling
code easier and avoids bugs as happened already.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

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David Hildenbrand 2016-05-09 11:22:34 +02:00 • committed by Christian Borntraeger

parent 8d6037a7b4

commit 154c8c19c3

3 changed files with 10 additions and 13 deletions

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3

arch/s390/include/asm/pgtable.h

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8

arch/s390/kvm/kvm-s390.c

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12

arch/s390/mm/pgtable.c

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