diff mbox series

[net-next,5/5] ptp: ptp_qoriq: Convert to platform remove callback returning void

Message ID 477c6995046eee729447d4f88bf042c7577fe100.1712734365.git.u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 145473b2950a29f7b9c76227433303ca0022610a
Delegated to: Netdev Maintainers
Headers show
Series ptp: Convert to platform remove callback returning void | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
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: 942 this patch: 942
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 3 of 3 maintainers
netdev/build_clang success Errors and warnings before: 953 this patch: 953
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: 953 this patch: 953
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 23 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 2 this patch: 2
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-04-12--06-00 (tests: 962)

Commit Message

Uwe Kleine-König April 10, 2024, 7:34 a.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/ptp/ptp_qoriq.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c
index a52859d024f0..879cfc1537ac 100644
--- a/drivers/ptp/ptp_qoriq.c
+++ b/drivers/ptp/ptp_qoriq.c
@@ -648,14 +648,13 @@  static int ptp_qoriq_probe(struct platform_device *dev)
 	return err;
 }
 
-static int ptp_qoriq_remove(struct platform_device *dev)
+static void ptp_qoriq_remove(struct platform_device *dev)
 {
 	struct ptp_qoriq *ptp_qoriq = platform_get_drvdata(dev);
 
 	ptp_qoriq_free(ptp_qoriq);
 	release_resource(ptp_qoriq->rsrc);
 	kfree(ptp_qoriq);
-	return 0;
 }
 
 static const struct of_device_id match_table[] = {
@@ -671,7 +670,7 @@  static struct platform_driver ptp_qoriq_driver = {
 		.of_match_table	= match_table,
 	},
 	.probe       = ptp_qoriq_probe,
-	.remove      = ptp_qoriq_remove,
+	.remove_new  = ptp_qoriq_remove,
 };
 
 module_platform_driver(ptp_qoriq_driver);