From 04d19184d266d40af5e77c2b90e1d2195c17e849 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 12 Mar 2023 17:14:47 +0100 Subject: [PATCH] clk: bcm: 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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230312161512.2715500-6-u.kleine-koenig@pengutronix.de Reviewed-by: Florian Fainelli Signed-off-by: Stephen Boyd --- drivers/clk/bcm/clk-bcm2711-dvp.c | 6 ++---- drivers/clk/bcm/clk-bcm63xx-gate.c | 6 ++---- drivers/clk/bcm/clk-raspberrypi.c | 6 ++---- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/drivers/clk/bcm/clk-bcm2711-dvp.c b/drivers/clk/bcm/clk-bcm2711-dvp.c index e63a426..e4fbbf3 100644 --- a/drivers/clk/bcm/clk-bcm2711-dvp.c +++ b/drivers/clk/bcm/clk-bcm2711-dvp.c @@ -92,15 +92,13 @@ unregister_clk0: return ret; }; -static int clk_dvp_remove(struct platform_device *pdev) +static void clk_dvp_remove(struct platform_device *pdev) { struct clk_dvp *dvp = platform_get_drvdata(pdev); struct clk_hw_onecell_data *data = dvp->data; clk_hw_unregister_gate(data->hws[1]); clk_hw_unregister_gate(data->hws[0]); - - return 0; } static const struct of_device_id clk_dvp_dt_ids[] = { @@ -111,7 +109,7 @@ MODULE_DEVICE_TABLE(of, clk_dvp_dt_ids); static struct platform_driver clk_dvp_driver = { .probe = clk_dvp_probe, - .remove = clk_dvp_remove, + .remove_new = clk_dvp_remove, .driver = { .name = "brcm2711-dvp", .of_match_table = clk_dvp_dt_ids, diff --git a/drivers/clk/bcm/clk-bcm63xx-gate.c b/drivers/clk/bcm/clk-bcm63xx-gate.c index 89297c5..0769f98 100644 --- a/drivers/clk/bcm/clk-bcm63xx-gate.c +++ b/drivers/clk/bcm/clk-bcm63xx-gate.c @@ -541,7 +541,7 @@ out_err: return ret; } -static int clk_bcm63xx_remove(struct platform_device *pdev) +static void clk_bcm63xx_remove(struct platform_device *pdev) { struct clk_bcm63xx_hw *hw = platform_get_drvdata(pdev); int i; @@ -552,8 +552,6 @@ static int clk_bcm63xx_remove(struct platform_device *pdev) if (!IS_ERR(hw->data.hws[i])) clk_hw_unregister_gate(hw->data.hws[i]); } - - return 0; } static const struct of_device_id clk_bcm63xx_dt_ids[] = { @@ -570,7 +568,7 @@ static const struct of_device_id clk_bcm63xx_dt_ids[] = { static struct platform_driver clk_bcm63xx = { .probe = clk_bcm63xx_probe, - .remove = clk_bcm63xx_remove, + .remove_new = clk_bcm63xx_remove, .driver = { .name = "bcm63xx-clock", .of_match_table = clk_bcm63xx_dt_ids, diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index ce2f934..eb399a4 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -439,13 +439,11 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) return 0; } -static int raspberrypi_clk_remove(struct platform_device *pdev) +static void raspberrypi_clk_remove(struct platform_device *pdev) { struct raspberrypi_clk *rpi = platform_get_drvdata(pdev); platform_device_unregister(rpi->cpufreq); - - return 0; } static const struct of_device_id raspberrypi_clk_match[] = { @@ -460,7 +458,7 @@ static struct platform_driver raspberrypi_clk_driver = { .of_match_table = raspberrypi_clk_match, }, .probe = raspberrypi_clk_probe, - .remove = raspberrypi_clk_remove, + .remove_new = raspberrypi_clk_remove, }; module_platform_driver(raspberrypi_clk_driver); -- 2.7.4