This is a note to let you know that I've just added the patch titled
usb: chipidea/ci_hdrc_imx: Convert to platform remove callback returning void
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-chipidea-ci_hdrc_imx-convert-to-platform-remove-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9fc323ba359e08140d8c0a5d31b1b0e481618053
Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Thu May 18 01:01:07 2023 +0200
usb: chipidea/ci_hdrc_imx: Convert to platform remove callback returning void
[ Upstream commit ad593ed671feb49e93a77653886c042f68b6cdfd ]
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@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230517230239.187727-6-u.kleine-koenig@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: 74adad500346 ("usb: chipidea: ci_hdrc_imx: decrement device's refcount in .remove() and in the error path of .probe()")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index caa91117ba429..9f4253777d0de 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -505,7 +505,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
return ret;
}
-static int ci_hdrc_imx_remove(struct platform_device *pdev)
+static void ci_hdrc_imx_remove(struct platform_device *pdev)
{
struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev);
@@ -525,8 +525,6 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
if (data->hsic_pad_regulator)
regulator_disable(data->hsic_pad_regulator);
}
-
- return 0;
}
static void ci_hdrc_imx_shutdown(struct platform_device *pdev)
@@ -672,7 +670,7 @@ static const struct dev_pm_ops ci_hdrc_imx_pm_ops = {
};
static struct platform_driver ci_hdrc_imx_driver = {
.probe = ci_hdrc_imx_probe,
- .remove = ci_hdrc_imx_remove,
+ .remove_new = ci_hdrc_imx_remove,
.shutdown = ci_hdrc_imx_shutdown,
.driver = {
.name = "imx_usb",
