[PATCH 2/2] Input: serio - make serio_bus const

[Ricardo B. Marliere]

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

Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>
---
 drivers/input/serio/serio.c | 2 +-
 include/linux/serio.h       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 767fc9efb4a8..a8838b522627 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -1007,7 +1007,7 @@ irqreturn_t serio_interrupt(struct serio *serio,
 }
 EXPORT_SYMBOL(serio_interrupt);
 
-struct bus_type serio_bus = {
+const struct bus_type serio_bus = {
 	.name		= "serio",
 	.drv_groups	= serio_driver_groups,
 	.match		= serio_bus_match,
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 6c27d413da92..7ca41af93b37 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -15,7 +15,7 @@
 #include <linux/mod_devicetable.h>
 #include <uapi/linux/serio.h>
 
-extern struct bus_type serio_bus;
+extern const struct bus_type serio_bus;
 
 struct serio {
 	void *port_data;

-- 
2.43.0