linux-kernel - [PATCH 23/30] ACPI-processor: Improve a size determination in acpi_processor_get

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Date:   Sat, 10 Sep 2016 12:05:28 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-acpi@...r.kernel.org, Len Brown <lenb@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: [PATCH 23/30] ACPI-processor: Improve a size determination in
 acpi_processor_get_tsd()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 6 Sep 2016 20:55:45 +0200

Replace the specification of a data structure by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/acpi/processor_throttling.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index ea1e959..dcebb4b2 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -616,7 +616,7 @@ static int acpi_processor_get_tsd(struct acpi_processor *pr)
 
 	pdomain = &(pr->throttling.domain_info);
 
-	state.length = sizeof(struct acpi_tsd_package);
+	state.length = sizeof(*pdomain);
 	state.pointer = pdomain;
 
 	status = acpi_extract_package(&(tsd->package.elements[0]),
-- 
2.10.0