From 2f47786ce460206f2ff8ecb7d19352e2307b5511 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 2 Dec 2022 19:35:33 +0100 Subject: [PATCH] pwm: mtk-disp: Propagate errors in .get_state() to the caller MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit .get_state() can return an error indication. Make use of it to propagate failing hardware accesses. Reviewed-by: AngeloGioacchino Del Regno Acked-by: Conor Dooley Link: https://lore.kernel.org/r/20221130152148.2769768-9-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König Signed-off-by: Thierry Reding --- drivers/pwm/pwm-mtk-disp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c index ccf0ccdef29df..692a06121b286 100644 --- a/drivers/pwm/pwm-mtk-disp.c +++ b/drivers/pwm/pwm-mtk-disp.c @@ -184,14 +184,14 @@ static int mtk_disp_pwm_get_state(struct pwm_chip *chip, err = clk_prepare_enable(mdp->clk_main); if (err < 0) { dev_err(chip->dev, "Can't enable mdp->clk_main: %pe\n", ERR_PTR(err)); - return 0; + return err; } err = clk_prepare_enable(mdp->clk_mm); if (err < 0) { dev_err(chip->dev, "Can't enable mdp->clk_mm: %pe\n", ERR_PTR(err)); clk_disable_unprepare(mdp->clk_main); - return 0; + return err; } rate = clk_get_rate(mdp->clk_main);