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s390/setup: use memblock_free_late() to free old stack

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Use memblock_free_late() to free the old machine check stack to the
buddy allocator instead of leaking it.

Fixes: b61b159512 ("s390: add stack for machine check handler")
Cc: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2021-04-05 22:32:27 +02:00
parent 85012e764d
commit ad31a8c051
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kernel/setup.c
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@ -354,7 +354,7 @@ static int __init stack_realloc(void)
if (!new)
panic("Couldn't allocate machine check stack");
WRITE_ONCE(S390_lowcore.mcck_stack, new + STACK_INIT_OFFSET);
memblock_free(old, THREAD_SIZE);
memblock_free_late(old, THREAD_SIZE);
return 0;
}
early_initcall(stack_realloc);