parport: make parport_bus_type const

Now that the driver core can properly handle constant struct bus_type,
move the parport_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240204-bus_cleanup-parport-v1-1-e6a0f756bbb8@marliere.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index 49c74ded8a53ce70279246c9d85aa4698c084110..08dfa74be3c568188993d18c9c0ca103c2194339 100644 (file)
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -130,7 +130,7 @@ static int parport_probe(struct device *dev)
        return drv->probe(to_pardevice(dev));
 }
 
-static struct bus_type parport_bus_type = {
+static const struct bus_type parport_bus_type = {
        .name = "parport",
        .probe = parport_probe,
 };