[31/42] crypto: omap-sham - 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/omap-sham.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index a6b4a0b3ace3..496602f7caa5 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -2200,7 +2200,7 @@  static int omap_sham_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int omap_sham_remove(struct platform_device *pdev)
+static void omap_sham_remove(struct platform_device *pdev)
 {
 	struct omap_sham_dev *dd;
 	int i, j;
@@ -2224,13 +2224,11 @@  static int omap_sham_remove(struct platform_device *pdev)
 		dma_release_channel(dd->dma_lch);
 
 	sysfs_remove_group(&dd->dev->kobj, &omap_sham_attr_group);
-
-	return 0;
 }
 
 static struct platform_driver omap_sham_driver = {
 	.probe	= omap_sham_probe,
-	.remove	= omap_sham_remove,
+	.remove_new = omap_sham_remove,
 	.driver	= {
 		.name	= "omap-sham",
 		.of_match_table	= omap_sham_of_match,