[32/42] crypto: qce - Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König Oct. 20, 2023, 7:55 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 <[e-mail]>
---
 drivers/crypto/qce/core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c
index fce49c0dee3e..28b5fd823827 100644
--- a/drivers/crypto/qce/core.c
+++ b/drivers/crypto/qce/core.c
@@ -277,7 +277,7 @@  static int qce_crypto_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int qce_crypto_remove(struct platform_device *pdev)
+static void qce_crypto_remove(struct platform_device *pdev)
 {
 	struct qce_device *qce = platform_get_drvdata(pdev);
 
@@ -287,7 +287,6 @@  static int qce_crypto_remove(struct platform_device *pdev)
 	clk_disable_unprepare(qce->bus);
 	clk_disable_unprepare(qce->iface);
 	clk_disable_unprepare(qce->core);
-	return 0;
 }
 
 static const struct of_device_id qce_crypto_of_match[] = {
@@ -300,7 +299,7 @@  MODULE_DEVICE_TABLE(of, qce_crypto_of_match);
 
 static struct platform_driver qce_crypto_driver = {
 	.probe = qce_crypto_probe,
-	.remove = qce_crypto_remove,
+	.remove_new = qce_crypto_remove,
 	.driver = {
 		.name = KBUILD_MODNAME,
 		.of_match_table = qce_crypto_of_match,