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ANDROID: mm: page_pinner: use put_user_page at dump_user_range

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dump_user_range uses __get_user_pages_locked with FOLL_GET. Thus,
close the page-pinner false positive using put_user_page.

Bug: 183414571
Signed-off-by: Minchan Kim <minchan@google.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Change-Id: Ib343a9f61303655b108d60575edae1249ef687df
This commit is contained in:
Minchan Kim 2021-03-23 09:16:14 -07:00 • committed by Minchan Kim
commit 67668f721b
1 changed files with 1 additions and 1 deletions
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2
fs/coredump.c
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@ -900,7 +900,7 @@ int dump_user_range(struct coredump_params *cprm, unsigned long start,
stop = !dump_emit(cprm, kaddr, PAGE_SIZE);
kunmap(page);
put_page(page);
put_user_page(page);
} else {
stop = !dump_skip(cprm, PAGE_SIZE);
}