diff mbox series

clocksource: sh_tmu: Mark driver as non-removable

Message ID 20230207193614.472060-1-u.kleine-koenig@pengutronix.de
State New
Headers
Series clocksource: sh_tmu: Mark driver as non-removable |

Commit Message

Uwe Kleine-König Feb. 7, 2023, 7:36 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_tmu 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_tmu.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)


base-commit: 05ecb680708a1dbe6554d6fc17e5d9a8a7cb5e6a

Comments

Daniel Lezcano Feb. 10, 2023, 1:37 p.m. UTC | #1 
On 07/02/2023 20:36, 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_tmu 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_tmu.c b/drivers/clocksource/sh_tmu.c
index b00dec0655cb..932f31a7c5be 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -632,11 +632,6 @@  static int sh_tmu_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int sh_tmu_remove(struct platform_device *pdev)
-{
-	return -EBUSY; /* cannot unregister clockevent and clocksource */
-}
-
 static const struct platform_device_id sh_tmu_id_table[] = {
 	{ "sh-tmu", SH_TMU },
 	{ "sh-tmu-sh3", SH_TMU_SH3 },
@@ -652,10 +647,10 @@  MODULE_DEVICE_TABLE(of, sh_tmu_of_table);
 
 static struct platform_driver sh_tmu_device_driver = {
 	.probe		= sh_tmu_probe,
-	.remove		= sh_tmu_remove,
 	.driver		= {
 		.name	= "sh_tmu",
 		.of_match_table = of_match_ptr(sh_tmu_of_table),
+		.suppress_bind_attrs = true,
 	},
 	.id_table	= sh_tmu_id_table,
 };