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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jean-Marc Eurin <jmeurin@google.com>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	Sasha Levin <sashal@kernel.org>,
	rafael@kernel.org, linux-acpi@vger.kernel.org
Subject: [PATCH AUTOSEL 6.1 07/17] ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls
Date: Mon, 14 Apr 2025 09:30:38 -0400	[thread overview]
Message-ID: <20250414133048.680608-7-sashal@kernel.org> (raw)
In-Reply-To: <20250414133048.680608-1-sashal@kernel.org>

From: Jean-Marc Eurin <jmeurin@google.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@google.com>
Link: https://patch.msgid.link/20250402001542.2600671-1-jmeurin@google.com
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.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 ced3eb15bd8b7..79a83d8236cb3 100644
--- a/drivers/acpi/pptt.c
+++ b/drivers/acpi/pptt.c
@@ -217,7 +217,7 @@ 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;
@@ -258,7 +258,7 @@ 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


      parent reply	other threads:[~2025-04-14 13:31 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20250414133048.680608-1-sashal@kernel.org>
2025-04-14 13:30 ` [PATCH AUTOSEL 6.1 06/17] ACPI: EC: Set ec_no_wakeup for Lenovo Go S Sasha Levin
2025-04-14 13:30 ` Sasha Levin [this message]

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