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: b61b1595124a ("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>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 60da976..72134f9 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -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);