commit 8214bf1fa125f2c7d382e2539da96d05f9510e2c
author Patrick Daly <quic_pdaly@quicinc.com> Mon Oct 10 19:25:27 2022 -0700
committer mdb:android-git <superproject-auto-update@invalid> Wed Aug 23 03:05:24 2023 +0000
tree beff7cfbc901dd5ef4cf602558a7112812ffa829
parent 87ba63583db602da17dc98bed14757a7e01338d9

ANDROID: mm/filemap: Fix missing put_page() for speculative page fault

find_get_page() returns a page with increased refcount, assuming a page
exists at the given index. Ensure this refcount is dropped on error.

Bug: 271079833
Bug: 295789791
Fixes: 59d4d125 ("BACKPORT: FROMLIST: mm: implement speculative handling in filemap_fault()")
Change-Id: Idc7b9e3f11f32a02bed4c6f4e11cec9200a5c790
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>
(cherry picked from commit 6232eecfa7ca0d8d0ca088da6d0edb2c3a879ff9)
Signed-off-by: Zhenhua Huang <quic_zhenhuah@quicinc.com>
(cherry picked from commit 1d05213028b6dbdb8801e20f29b6a6f91c216033)
(cherry picked from commit 6b86d52336963edb26d088e4f89fca0f48006402)