ACPI: video: Use strscpy() instead of strcpy()

Replace strcpy() with strscpy() in the ACPI backlight code.

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

Link: KSPP/linux#88
Signed-off-by: Muhammad Qasim Abdul Majeed <[email protected]>
Link: https://patch.msgid.link/[email protected]
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: qa-majeed

drivers/acpi/acpi_video.c

@@ -1128,8 +1128,8 @@ static int acpi_video_bus_get_one_device(struct acpi_device *device, void *arg)
 		return -ENOMEM;
 	}
 
-	strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
+	strscpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
+	strscpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
 
 	data->device_id = device_id;
 	data->video = video;
@@ -2010,8 +2010,8 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	}
 
 	video->device = device;
-	strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
-	strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
+	strscpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
+	strscpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
 	device->driver_data = video;
 
 	acpi_video_bus_find_cap(video);