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arm64: hibernate: variable pudp is used instead of pd4dp 

There should be p4dp used when p4d page is allocated.
This is not a functional issue, but for the logical correctness this
should be fixed.

Fixes: e9f6376858 ("arm64: add support for folded p4d page tables")
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Link: https://lore.kernel.org/r/20210125191923.1060122-3-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Pavel Tatashin 2021-01-25 14:19:07 -05:00 committed by Will Deacon
parent 117cda9a78
commit 41f67d40a3
1 changed files with 3 additions and 3 deletions
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6
arch/arm64/kernel/hibernate.c
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@ -190,10 +190,10 @@ static int trans_pgd_map_page(pgd_t *trans_pgd, void *page,
pgdp = pgd_offset_pgd(trans_pgd, dst_addr);
if (pgd_none(READ_ONCE(*pgdp))) {
pudp = (void *)get_safe_page(GFP_ATOMIC);
if (!pudp)
p4dp = (void *)get_safe_page(GFP_ATOMIC);
if (!pgdp)
return -ENOMEM;
pgd_populate(&init_mm, pgdp, pudp);
pgd_populate(&init_mm, pgdp, p4dp);
}
p4dp = p4d_offset(pgdp, dst_addr);