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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2024-04-15 10:34:21 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2024-04-26 12:26:09 +0300
commit3f4d1482dad9a87c3bf00490fcf339cb5f6d53a8 (patch)
tree26088648384c2ab207ebe38503951369d8f3d840
parent543ea178fbfadeaf79e15766ac989f3351349f02 (diff)
downloadlinux-3f4d1482dad9a87c3bf00490fcf339cb5f6d53a8.tar.xz
crypto: tegra - 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() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Fixes: 0880bb3b00c8 ("crypto: tegra - Add Tegra Security Engine driver") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Akhil R <akhilrajeev@nvidia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/tegra/tegra-se-main.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/crypto/tegra/tegra-se-main.c b/drivers/crypto/tegra/tegra-se-main.c
index f4758e320615..9955874b3dc3 100644
--- a/drivers/crypto/tegra/tegra-se-main.c
+++ b/drivers/crypto/tegra/tegra-se-main.c
@@ -320,7 +320,7 @@ static int tegra_se_probe(struct platform_device *pdev)
return 0;
}
-static int tegra_se_remove(struct platform_device *pdev)
+static void tegra_se_remove(struct platform_device *pdev)
{
struct tegra_se *se = platform_get_drvdata(pdev);
@@ -328,8 +328,6 @@ static int tegra_se_remove(struct platform_device *pdev)
crypto_engine_exit(se->engine);
iommu_fwspec_free(se->dev);
host1x_client_unregister(&se->client);
-
- return 0;
}
static const struct tegra_se_regs tegra234_aes1_regs = {
@@ -390,7 +388,7 @@ static struct platform_driver tegra_se_driver = {
.of_match_table = tegra_se_of_match,
},
.probe = tegra_se_probe,
- .remove = tegra_se_remove,
+ .remove_new = tegra_se_remove,
};
static int tegra_se_host1x_probe(struct host1x_device *dev)