From 8cc18a70913fcdc8ac06796ca91304df0a51b6b5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 17 Nov 2023 10:31:01 +0100 Subject: [PATCH] wifi: wcn36xx: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Jeff Johnson Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231117093056.873834-12-u.kleine-koenig@pengutronix.de --- drivers/net/wireless/ath/wcn36xx/main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index 2bd1163177f08..41119fb177e30 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -1644,7 +1644,7 @@ out_err: return ret; } -static int wcn36xx_remove(struct platform_device *pdev) +static void wcn36xx_remove(struct platform_device *pdev) { struct ieee80211_hw *hw = platform_get_drvdata(pdev); struct wcn36xx *wcn = hw->priv; @@ -1666,8 +1666,6 @@ static int wcn36xx_remove(struct platform_device *pdev) mutex_destroy(&wcn->hal_mutex); ieee80211_free_hw(hw); - - return 0; } static const struct of_device_id wcn36xx_of_match[] = { @@ -1678,7 +1676,7 @@ MODULE_DEVICE_TABLE(of, wcn36xx_of_match); static struct platform_driver wcn36xx_driver = { .probe = wcn36xx_probe, - .remove = wcn36xx_remove, + .remove_new = wcn36xx_remove, .driver = { .name = "wcn36xx", .of_match_table = wcn36xx_of_match, -- 2.30.2