Commit ad31a8c0 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

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



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

Fixes: b61b1595 ("s390: add stack for machine check handler")
Cc: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: default avatarSven Schnelle <svens@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 85012e76

arch/s390/kernel/setup.c

+1 −1
Original line number Diff line number Diff line
@@ -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);