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ANDROID: mm: page_pinner: use put_user_page at add_page_for_migration

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add_page_for_migration uses follow_page with FOLL_GET. Thus,
close the page_pinner false positive by using put_user_page.

Bug: 183414571
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I655b5610bafad86172dcb291573c33176989d94b
This commit is contained in:
Minchan Kim 2021-03-23 10:07:38 -07:00 committed by Minchan Kim
parent 67668f721b
commit ec1dbc10ad
1 changed files with 1 additions and 1 deletions
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2
mm/migrate.c
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@ -1654,7 +1654,7 @@ static int add_page_for_migration(struct mm_struct *mm, unsigned long addr,
* isolate_lru_page() or drop the page ref if it was * isolate_lru_page() or drop the page ref if it was
* not isolated. * not isolated.
*/ */
put_page(page); put_user_page(page);
out: out:
mmap_read_unlock(mm); mmap_read_unlock(mm);
return err; return err;