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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-07-31 19:54:56 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2023-08-11 14:19:27 +0300
commit7f1045c61876addde13b9aeff2d504aa9dabc3a7 (patch)
tree6eca9060294625c46075ed8070e8c091c985281d /drivers/crypto
parent3feec4ef9f99e2ca3c4614bc0c46e9c0ad337357 (diff)
downloadlinux-7f1045c61876addde13b9aeff2d504aa9dabc3a7.tar.xz
crypto: stm32 - Convert to platform remove callback returning void
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 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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/stm32/stm32-hash.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index b10243035584..68c52eeaa6b1 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -2112,7 +2112,7 @@ err_reset:
return ret;
}
-static int stm32_hash_remove(struct platform_device *pdev)
+static void stm32_hash_remove(struct platform_device *pdev)
{
struct stm32_hash_dev *hdev = platform_get_drvdata(pdev);
int ret;
@@ -2135,8 +2135,6 @@ static int stm32_hash_remove(struct platform_device *pdev)
if (ret >= 0)
clk_disable_unprepare(hdev->clk);
-
- return 0;
}
#ifdef CONFIG_PM
@@ -2173,7 +2171,7 @@ static const struct dev_pm_ops stm32_hash_pm_ops = {
static struct platform_driver stm32_hash_driver = {
.probe = stm32_hash_probe,
- .remove = stm32_hash_remove,
+ .remove_new = stm32_hash_remove,
.driver = {
.name = "stm32-hash",
.pm = &stm32_hash_pm_ops,