diff mbox series

[net-next,47/54] net: ethernet: sun: Convert to platform remove callback returning void

Message ID 20230918204227.1316886-48-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 8f4e45a0135ea957af374b00cc30ef52bd93f85f
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 12 of 12 maintainers
netdev/build_clang success Errors and warnings before: 1365 this patch: 1365
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: 1364 this patch: 1364
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 71 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, 8:42 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/sun/niu.c     | 5 ++---
 drivers/net/ethernet/sun/sunbmac.c | 6 ++----
 drivers/net/ethernet/sun/sunqe.c   | 6 ++----
 3 files changed, 6 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 011d74087f86..21431f43e4c2 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -10132,7 +10132,7 @@  static int niu_of_probe(struct platform_device *op)
 	return err;
 }
 
-static int niu_of_remove(struct platform_device *op)
+static void niu_of_remove(struct platform_device *op)
 {
 	struct net_device *dev = platform_get_drvdata(op);
 
@@ -10165,7 +10165,6 @@  static int niu_of_remove(struct platform_device *op)
 
 		free_netdev(dev);
 	}
-	return 0;
 }
 
 static const struct of_device_id niu_match[] = {
@@ -10183,7 +10182,7 @@  static struct platform_driver niu_of_driver = {
 		.of_match_table = niu_match,
 	},
 	.probe		= niu_of_probe,
-	.remove		= niu_of_remove,
+	.remove_new	= niu_of_remove,
 };
 
 #endif /* CONFIG_SPARC64 */
diff --git a/drivers/net/ethernet/sun/sunbmac.c b/drivers/net/ethernet/sun/sunbmac.c
index cc34d92d2e3d..16c86b13c185 100644
--- a/drivers/net/ethernet/sun/sunbmac.c
+++ b/drivers/net/ethernet/sun/sunbmac.c
@@ -1234,7 +1234,7 @@  static int bigmac_sbus_probe(struct platform_device *op)
 	return bigmac_ether_init(op, qec_op);
 }
 
-static int bigmac_sbus_remove(struct platform_device *op)
+static void bigmac_sbus_remove(struct platform_device *op)
 {
 	struct bigmac *bp = platform_get_drvdata(op);
 	struct device *parent = op->dev.parent;
@@ -1255,8 +1255,6 @@  static int bigmac_sbus_remove(struct platform_device *op)
 			  bp->bblock_dvma);
 
 	free_netdev(net_dev);
-
-	return 0;
 }
 
 static const struct of_device_id bigmac_sbus_match[] = {
@@ -1274,7 +1272,7 @@  static struct platform_driver bigmac_sbus_driver = {
 		.of_match_table = bigmac_sbus_match,
 	},
 	.probe		= bigmac_sbus_probe,
-	.remove		= bigmac_sbus_remove,
+	.remove_new	= bigmac_sbus_remove,
 };
 
 module_platform_driver(bigmac_sbus_driver);
diff --git a/drivers/net/ethernet/sun/sunqe.c b/drivers/net/ethernet/sun/sunqe.c
index b37360f44972..aedd13c94225 100644
--- a/drivers/net/ethernet/sun/sunqe.c
+++ b/drivers/net/ethernet/sun/sunqe.c
@@ -933,7 +933,7 @@  static int qec_sbus_probe(struct platform_device *op)
 	return qec_ether_init(op);
 }
 
-static int qec_sbus_remove(struct platform_device *op)
+static void qec_sbus_remove(struct platform_device *op)
 {
 	struct sunqe *qp = platform_get_drvdata(op);
 	struct net_device *net_dev = qp->dev;
@@ -948,8 +948,6 @@  static int qec_sbus_remove(struct platform_device *op)
 			  qp->buffers, qp->buffers_dvma);
 
 	free_netdev(net_dev);
-
-	return 0;
 }
 
 static const struct of_device_id qec_sbus_match[] = {
@@ -967,7 +965,7 @@  static struct platform_driver qec_sbus_driver = {
 		.of_match_table = qec_sbus_match,
 	},
 	.probe		= qec_sbus_probe,
-	.remove		= qec_sbus_remove,
+	.remove_new	= qec_sbus_remove,
 };
 
 static int __init qec_init(void)