diff mbox series

[net-next,21/54] net: ethernet: faraday: Convert to platform remove callback returning void

Message ID 20230918204227.1316886-22-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit dc715af33b42f5a99c49d8aef9ea75cf8d71e570
Delegated to: Netdev Maintainers
Headers show
Series net: ethernet: Convert to platform remove callback returning void | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches (and no cover letter)
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1340 this patch: 1340
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 46 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Uwe Kleine-König Sept. 18, 2023, 8:41 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() is renamed to .remove().

Trivially convert these drivers 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/net/ethernet/faraday/ftgmac100.c | 5 ++---
 drivers/net/ethernet/faraday/ftmac100.c  | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 9135b918dd49..fddfd1dd5070 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -2012,7 +2012,7 @@  static int ftgmac100_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int ftgmac100_remove(struct platform_device *pdev)
+static void ftgmac100_remove(struct platform_device *pdev)
 {
 	struct net_device *netdev;
 	struct ftgmac100 *priv;
@@ -2040,7 +2040,6 @@  static int ftgmac100_remove(struct platform_device *pdev)
 
 	netif_napi_del(&priv->napi);
 	free_netdev(netdev);
-	return 0;
 }
 
 static const struct of_device_id ftgmac100_of_match[] = {
@@ -2051,7 +2050,7 @@  MODULE_DEVICE_TABLE(of, ftgmac100_of_match);
 
 static struct platform_driver ftgmac100_driver = {
 	.probe	= ftgmac100_probe,
-	.remove	= ftgmac100_remove,
+	.remove_new = ftgmac100_remove,
 	.driver	= {
 		.name		= DRV_NAME,
 		.of_match_table	= ftgmac100_of_match,
diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
index 183069581bc0..003bc9a45c65 100644
--- a/drivers/net/ethernet/faraday/ftmac100.c
+++ b/drivers/net/ethernet/faraday/ftmac100.c
@@ -1219,7 +1219,7 @@  static int ftmac100_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int ftmac100_remove(struct platform_device *pdev)
+static void ftmac100_remove(struct platform_device *pdev)
 {
 	struct net_device *netdev;
 	struct ftmac100 *priv;
@@ -1234,7 +1234,6 @@  static int ftmac100_remove(struct platform_device *pdev)
 
 	netif_napi_del(&priv->napi);
 	free_netdev(netdev);
-	return 0;
 }
 
 static const struct of_device_id ftmac100_of_ids[] = {
@@ -1244,7 +1243,7 @@  static const struct of_device_id ftmac100_of_ids[] = {
 
 static struct platform_driver ftmac100_driver = {
 	.probe		= ftmac100_probe,
-	.remove		= ftmac100_remove,
+	.remove_new	= ftmac100_remove,
 	.driver		= {
 		.name	= DRV_NAME,
 		.of_match_table = ftmac100_of_ids