diff mbox series

[6/6] ipmi: kcs_bmc_npcm7xx: Convert to platform remove callback returning void

Message ID 16144ffaa6f40a1a126d5cf19ef4337218a04fbb.1709655755.git.u.kleine-koenig@pengutronix.de
State New
Headers show
Series ipmi: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König March 5, 2024, 4:27 p.m. UTC 
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() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/char/ipmi/kcs_bmc_npcm7xx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/char/ipmi/kcs_bmc_npcm7xx.c b/drivers/char/ipmi/kcs_bmc_npcm7xx.c
index 7961fec56476..07710198233a 100644
--- a/drivers/char/ipmi/kcs_bmc_npcm7xx.c
+++ b/drivers/char/ipmi/kcs_bmc_npcm7xx.c
@@ -218,7 +218,7 @@  static int npcm7xx_kcs_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int npcm7xx_kcs_remove(struct platform_device *pdev)
+static void npcm7xx_kcs_remove(struct platform_device *pdev)
 {
 	struct npcm7xx_kcs_bmc *priv = platform_get_drvdata(pdev);
 	struct kcs_bmc_device *kcs_bmc = &priv->kcs_bmc;
@@ -227,8 +227,6 @@  static int npcm7xx_kcs_remove(struct platform_device *pdev)
 
 	npcm7xx_kcs_enable_channel(kcs_bmc, false);
 	npcm7xx_kcs_irq_mask_update(kcs_bmc, (KCS_BMC_EVENT_TYPE_IBF | KCS_BMC_EVENT_TYPE_OBE), 0);
-
-	return 0;
 }
 
 static const struct of_device_id npcm_kcs_bmc_match[] = {
@@ -243,7 +241,7 @@  static struct platform_driver npcm_kcs_bmc_driver = {
 		.of_match_table	= npcm_kcs_bmc_match,
 	},
 	.probe	= npcm7xx_kcs_probe,
-	.remove	= npcm7xx_kcs_remove,
+	.remove_new = npcm7xx_kcs_remove,
 };
 module_platform_driver(npcm_kcs_bmc_driver);