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[v10,02/18] arm64: hibernate: variable pudp is used instead of pd4dp

Message ID 20210125191923.1060122-3-pasha.tatashin@soleen.com (mailing list archive)
State New, archived
Headers show
Series arm64: MMU enabled kexec relocation | expand

Commit Message

Pavel Tatashin Jan. 25, 2021, 7:19 p.m. UTC
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: e9f6376858b9 ("arm64: add support for folded p4d page tables")
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
 arch/arm64/kernel/hibernate.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index 9c9f47e9f7f4..0a54d81c90f9 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -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);