This is a note to let you know that I've just added the patch titled pwm: mtk-disp: Don't check the return code of pwmchip_remove() to the 5.10-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: pwm-mtk-disp-don-t-check-the-return-code-of-pwmchip_.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 9c4ade29612fdab2bc674ff5b3ddda5227af9ace Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> Date: Wed Jul 7 18:28:27 2021 +0200 pwm: mtk-disp: Don't check the return code of pwmchip_remove() [ Upstream commit 9b7b5736ffd5da6f8f6329ebe5f1829cbcf8afae ] pwmchip_remove() returns always 0. Don't use the value to make it possible to eventually change the function to return void. Also the driver core ignores the return value of mtk_disp_pwm_remove(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxx> Stable-dep-of: 36dd7f530ae7 ("pwm: mtk-disp: Disable shadow registers before setting backlight values") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c index 83b8be0209b74..af63aaab8e153 100644 --- a/drivers/pwm/pwm-mtk-disp.c +++ b/drivers/pwm/pwm-mtk-disp.c @@ -240,13 +240,12 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev) static int mtk_disp_pwm_remove(struct platform_device *pdev) { struct mtk_disp_pwm *mdp = platform_get_drvdata(pdev); - int ret; - ret = pwmchip_remove(&mdp->chip); + pwmchip_remove(&mdp->chip); clk_unprepare(mdp->clk_mm); clk_unprepare(mdp->clk_main); - return ret; + return 0; } static const struct mtk_pwm_data mt2701_pwm_data = {