[PATCH 6.6.y 1/4] serdev: make serdev_bus_type const

[Sasha Levin <sashal@kernel.org>]

From: "Ricardo B. Marliere" <ricardo@marliere.net>

[ Upstream commit 88cddfb7bf23b06876da6c3e9f296e666d0f6332 ]

Now that the driver core can properly handle constant struct bus_type,
move the serdev_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>
Link: https://lore.kernel.org/r/20240203-bus_cleanup-tty-v1-1-86b698c82efe@marliere.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 375ba7484132 ("Bluetooth: hci_qca: Convert timeout from jiffies to ms")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serdev/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index e7d663901c075..75c42fa1b5de7 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -441,7 +441,7 @@ static void serdev_drv_remove(struct device *dev)
 	dev_pm_domain_detach(dev, true);
 }
 
-static struct bus_type serdev_bus_type = {
+static const struct bus_type serdev_bus_type = {
 	.name		= "serial",
 	.match		= serdev_device_match,
 	.probe		= serdev_drv_probe,
-- 
2.53.0