s390/crash: make copy_oldmem_page() return number of bytes copied

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Callback copy_oldmem_page() returns either error code or zero.
Instead, it should return the error code or number of bytes copied.

Fixes: df9694c797 ("s390/dump: streamline oldmem copy functions")
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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Alexander Gordeev 2022-06-09 21:32:39 +02:00

parent cc02e6e21a

commit af2debd58b

1 changed files with 4 additions and 3 deletions

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arch/s390/kernel/crash_dump.c

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