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

[Muhammad Qasim Abdul Majeed]

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@xxxxxxxxx>


<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