linux-kernel - [PATCH AUTOSEL 6.6 09/24] ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls

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Message-Id: <20250414132957.680250-9-sashal@kernel.org>
Date: Mon, 14 Apr 2025 09:29:42 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Jean-Marc Eurin <jmeurin@...gle.com>,
	"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
	Sasha Levin <sashal@...nel.org>,
	rafael@...nel.org,
	linux-acpi@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 09/24] ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls

From: Jean-Marc Eurin <jmeurin@...gle.com>

[ Upstream commit 7ab4f0e37a0f4207e742a8de69be03984db6ebf0 ]

The end of table checks should be done with the structure size,
but 2 of the 3 similar calls use the pointer size.

Signed-off-by: Jean-Marc Eurin <jmeurin@...gle.com>
Link: https://patch.msgid.link/20250402001542.2600671-1-jmeurin@google.com
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/acpi/pptt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c
index a35dd0e41c270..f73ce6e13065d 100644
--- a/drivers/acpi/pptt.c
+++ b/drivers/acpi/pptt.c
@@ -229,7 +229,7 @@ static int acpi_pptt_leaf_node(struct acpi_table_header *table_hdr,
 	node_entry = ACPI_PTR_DIFF(node, table_hdr);
 	entry = ACPI_ADD_PTR(struct acpi_subtable_header, table_hdr,
 			     sizeof(struct acpi_table_pptt));
-	proc_sz = sizeof(struct acpi_pptt_processor *);
+	proc_sz = sizeof(struct acpi_pptt_processor);
 
 	while ((unsigned long)entry + proc_sz < table_end) {
 		cpu_node = (struct acpi_pptt_processor *)entry;
@@ -270,7 +270,7 @@ static struct acpi_pptt_processor *acpi_find_processor_node(struct acpi_table_he
 	table_end = (unsigned long)table_hdr + table_hdr->length;
 	entry = ACPI_ADD_PTR(struct acpi_subtable_header, table_hdr,
 			     sizeof(struct acpi_table_pptt));
-	proc_sz = sizeof(struct acpi_pptt_processor *);
+	proc_sz = sizeof(struct acpi_pptt_processor);
 
 	/* find the processor structure associated with this cpuid */
 	while ((unsigned long)entry + proc_sz < table_end) {
-- 
2.39.5