From 6ec939f8b809cb06ba7802e17ef7024d1bc0ee84 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 4 Oct 2019 09:53:58 +0530 Subject: [PATCH] arm64/mm: Poison initmem while freeing with free_reserved_area() Platform implementation for free_initmem() should poison the memory while freeing it up. Hence pass across POISON_FREE_INITMEM while calling into free_reserved_area(). The same is being followed in the generic fallback for free_initmem() and some other platforms overriding it. Cc: Mark Rutland Cc: linux-kernel@vger.kernel.org Reviewed-by: Steven Price Acked-by: Will Deacon Signed-off-by: Anshuman Khandual Signed-off-by: Catalin Marinas --- arch/arm64/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 87a0e3b6c146..7c225d0132b8 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -571,7 +571,7 @@ void free_initmem(void) { free_reserved_area(lm_alias(__init_begin), lm_alias(__init_end), - 0, "unused kernel"); + POISON_FREE_INITMEM, "unused kernel"); /* * Unmap the __init region but leave the VM area in place. This * prevents the region from being reused for kernel modules, which -- 2.11.0