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Message-ID: <86165c8ccd0bb47000a29e711102795b36c8df41.1703693980.git.u.kleine-koenig@pengutronix.de> Date: Wed, 27 Dec 2023 17:26:25 +0100 From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de> To: Sudeep Holla <sudeep.holla@....com> Cc: kernel@...gutronix.de, Cristian Marussi <cristian.marussi@....com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH 01/11] firmware: arm_scmi: 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. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de> --- drivers/firmware/arm_scmi/driver.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index a9f70e6e58ac..3ea64b22cf0d 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -2834,7 +2834,7 @@ static int scmi_probe(struct platform_device *pdev) return ret; } -static int scmi_remove(struct platform_device *pdev) +static void scmi_remove(struct platform_device *pdev) { int id; struct scmi_info *info = platform_get_drvdata(pdev); @@ -2868,8 +2868,6 @@ static int scmi_remove(struct platform_device *pdev) scmi_cleanup_txrx_channels(info); ida_free(&scmi_id, info->id); - - return 0; } static ssize_t protocol_version_show(struct device *dev, @@ -2947,7 +2945,7 @@ static struct platform_driver scmi_driver = { .dev_groups = versions_groups, }, .probe = scmi_probe, - .remove = scmi_remove, + .remove_new = scmi_remove, }; /** -- 2.43.0
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