linux-kernel - [PATCH] ACPI: button: Use strscpy instead of strcpy.

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Message-Id: <20240901191826.421488-1-qasim.majeed20@gmail.com>
Date: Mon,  2 Sep 2024 00:18:26 +0500
From: Muhammad Qasim Abdul Majeed <qasim.majeed20@...il.com>
To: rafael@...nel.org,
	lenb@...nel.org,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Muhammad Qasim Abdul Majeed <qasim.majeed20@...il.com>
Subject: [PATCH] ACPI: button: Use strscpy instead of strcpy.

Replace strcpy() with strscpy() in the ACPI button driver.

strcpy() has been deprecated because it is generally unsafe, so help to
eliminate it from the kernel source.

Link: https://github.com/KSPP/linux/issues/88

Signed-off-by: Muhammad Qasim Abdul Majeed <qasim.majeed20@...il.com>
<This is more than advertised in the changelog>
The patch has been updated.
---
 drivers/acpi/button.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index cc61020756be..51470208e6da 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -547,20 +547,20 @@ static int acpi_button_add(struct acpi_device *device)
 	    !strcmp(hid, ACPI_BUTTON_HID_POWERF)) {
 		button->type = ACPI_BUTTON_TYPE_POWER;
 		handler = acpi_button_notify;
-		strcpy(name, ACPI_BUTTON_DEVICE_NAME_POWER);
+		strscpy(name, ACPI_BUTTON_DEVICE_NAME_POWER, MAX_ACPI_DEVICE_NAME_LEN);
 		sprintf(class, "%s/%s",
 			ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER);
 	} else if (!strcmp(hid, ACPI_BUTTON_HID_SLEEP) ||
 		   !strcmp(hid, ACPI_BUTTON_HID_SLEEPF)) {
 		button->type = ACPI_BUTTON_TYPE_SLEEP;
 		handler = acpi_button_notify;
-		strcpy(name, ACPI_BUTTON_DEVICE_NAME_SLEEP);
+		strscpy(name, ACPI_BUTTON_DEVICE_NAME_SLEEP, MAX_ACPI_DEVICE_NAME_LEN);
 		sprintf(class, "%s/%s",
 			ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP);
 	} else if (!strcmp(hid, ACPI_BUTTON_HID_LID)) {
 		button->type = ACPI_BUTTON_TYPE_LID;
 		handler = acpi_lid_notify;
-		strcpy(name, ACPI_BUTTON_DEVICE_NAME_LID);
+		strscpy(name, ACPI_BUTTON_DEVICE_NAME_LID, MAX_ACPI_DEVICE_NAME_LEN);
 		sprintf(class, "%s/%s",
 			ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID);
 		input->open = acpi_lid_input_open;
-- 
2.34.1