diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-09-17 15:09:47 +0200 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2023-11-01 11:28:35 +0000 |
| commit | 6061302092305a0584aacf0d82a9d5e66653884c (patch) | |
| tree | 82e9d76907780600e6825ab75fc6ee4cbdcdb850 /drivers/leds/leds-nic78bx.c | |
| parent | eccc489ef68d70cfdd850ba24933f1febbf2893e (diff) | |
leds: Convert all platform drivers to return void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
All platform drivers below drivers/leds/ unconditionally return zero in
their remove callback and so can be converted trivially to the variant
returning void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230917130947.1122198-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds/leds-nic78bx.c')
| -rw-r--r-- | drivers/leds/leds-nic78bx.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/leds/leds-nic78bx.c b/drivers/leds/leds-nic78bx.c index f196f52eec1e..a86b43dd995e 100644 --- a/drivers/leds/leds-nic78bx.c +++ b/drivers/leds/leds-nic78bx.c @@ -167,15 +167,13 @@ static int nic78bx_probe(struct platform_device *pdev) return ret; } -static int nic78bx_remove(struct platform_device *pdev) +static void nic78bx_remove(struct platform_device *pdev) { struct nic78bx_led_data *led_data = platform_get_drvdata(pdev); /* Lock LED register */ outb(NIC78BX_LOCK_VALUE, led_data->io_base + NIC78BX_LOCK_REG_OFFSET); - - return 0; } static const struct acpi_device_id led_device_ids[] = { @@ -186,7 +184,7 @@ MODULE_DEVICE_TABLE(acpi, led_device_ids); static struct platform_driver led_driver = { .probe = nic78bx_probe, - .remove = nic78bx_remove, + .remove_new = nic78bx_remove, .driver = { .name = KBUILD_MODNAME, .acpi_match_table = ACPI_PTR(led_device_ids), |