From 12731a1cda32dd76ffd00cf8f047bdf23aab759f Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Tue, 31 May 2022 20:26:43 +0800 Subject: [PATCH] mm/memremap: fix missing call to untrack_pfn() in pagemap_range() commit a04e1928e2ead144dc2f369768bc0a0f3110af89 upstream. We forget to call untrack_pfn() to pair with track_pfn_remap() when range is not allowed to hotplug. Fix it by jump err_kasan. Link: https://lkml.kernel.org/r/20220531122643.25249-1-linmiaohe@huawei.com Fixes: bca3feaa0764 ("mm/memory_hotplug: prevalidate the address range being added with platform") Signed-off-by: Miaohe Lin Reviewed-by: David Hildenbrand Acked-by: Muchun Song Cc: Anshuman Khandual Cc: Oscar Salvador Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/memremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memremap.c b/mm/memremap.c index ed593bf87109..e77487375c8e 100644 --- a/mm/memremap.c +++ b/mm/memremap.c @@ -245,7 +245,7 @@ static int pagemap_range(struct dev_pagemap *pgmap, struct mhp_params *params, if (!mhp_range_allowed(range->start, range_len(range), !is_private)) { error = -EINVAL; - goto err_pfn_remap; + goto err_kasan; } mem_hotplug_begin();