5.15-stable review patch. If anyone has any objections, please let me know.
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From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ 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@pengutronix.de Link: https://lore.kernel.org/r/20230517230239.187727-6-u.kleine-koenig@pengutroni... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org 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@kernel.org --- drivers/usb/chipidea/ci_hdrc_imx.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
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",