diff mbox series

clocksource/drivers/sh_cmt: Mark driver as non-removable

Message ID 20230123220221.48164-1-u.kleine-koenig@pengutronix.de
State New
Headers
Series clocksource/drivers/sh_cmt: Mark driver as non-removable |

Commit Message

Uwe Kleine-König Jan. 23, 2023, 10:02 p.m. UTC 
  The comment in the remove callback suggests that the driver is not
supposed to be unbound. However returning an error code in the remove
callback doesn't accomplish that. Instead set the suppress_bind_attrs
property (which makes it impossible to unbind the driver via sysfs).
The only remaining way to unbind a sh_cmt device would be module
unloading, but that doesn't apply here, as the driver cannot be built as
a module.

Also drop the useless remove callback.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/clocksource/sh_cmt.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)


base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2

Comments

Daniel Lezcano Jan. 26, 2023, 11:11 a.m. UTC | #1 
On 23/01/2023 23:02, Uwe Kleine-König wrote:
> The comment in the remove callback suggests that the driver is not
> supposed to be unbound. However returning an error code in the remove
> callback doesn't accomplish that. Instead set the suppress_bind_attrs
> property (which makes it impossible to unbind the driver via sysfs).
> The only remaining way to unbind a sh_cmt device would be module
> unloading, but that doesn't apply here, as the driver cannot be built as
> a module.
> 
> Also drop the useless remove callback.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> ---

Applied, thanks
diff mbox series

Patch

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 7b952aa52c0b..8b2e079d9df2 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -1145,17 +1145,12 @@  static int sh_cmt_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int sh_cmt_remove(struct platform_device *pdev)
-{
-	return -EBUSY; /* cannot unregister clockevent and clocksource */
-}
-
 static struct platform_driver sh_cmt_device_driver = {
 	.probe		= sh_cmt_probe,
-	.remove		= sh_cmt_remove,
 	.driver		= {
 		.name	= "sh_cmt",
 		.of_match_table = of_match_ptr(sh_cmt_of_table),
+		.suppress_bind_attrs = true,
 	},
 	.id_table	= sh_cmt_id_table,
 };