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-rw-r--r--mm/memremap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memremap.c b/mm/memremap.c
index 377ccbc7e356..8b5c8fd4ea8e 100644
--- a/mm/memremap.c
+++ b/mm/memremap.c
@@ -141,10 +141,10 @@ void memunmap_pages(struct dev_pagemap *pgmap)
for (i = 0; i < pgmap->nr_range; i++)
percpu_ref_put_many(&pgmap->ref, pfn_len(pgmap, i));
wait_for_completion(&pgmap->done);
- percpu_ref_exit(&pgmap->ref);
for (i = 0; i < pgmap->nr_range; i++)
pageunmap_range(pgmap, i);
+ percpu_ref_exit(&pgmap->ref);
WARN_ONCE(pgmap->altmap.alloc, "failed to free all reserved pages\n");
devmap_managed_enable_put(pgmap);