[40/42] crypto: talitos - Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König Oct. 20, 2023, 7:56 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/talitos.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 4ca4fbd227bc..e603c0f2abca 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -3136,7 +3136,7 @@  static int hw_supports(struct device *dev, __be32 desc_hdr_template)
 	return ret;
 }
 
-static int talitos_remove(struct platform_device *ofdev)
+static void talitos_remove(struct platform_device *ofdev)
 {
 	struct device *dev = &ofdev->dev;
 	struct talitos_private *priv = dev_get_drvdata(dev);
@@ -3170,8 +3170,6 @@  static int talitos_remove(struct platform_device *ofdev)
 	tasklet_kill(&priv->done_task[0]);
 	if (priv->irq[1])
 		tasklet_kill(&priv->done_task[1]);
-
-	return 0;
 }
 
 static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
@@ -3559,7 +3557,7 @@  static struct platform_driver talitos_driver = {
 		.of_match_table = talitos_match,
 	},
 	.probe = talitos_probe,
-	.remove = talitos_remove,
+	.remove_new = talitos_remove,
 };
 
 module_platform_driver(talitos_driver);