From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Fri, 2 Dec 2022 18:35:35 +0000 (+0100)
Subject: pwm: sprd: Propagate errors in .get_state() to the caller
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=500f879843adf329281e418d302e1ad40baa26c3;p=linux.git

pwm: sprd: Propagate errors in .get_state() to the caller

.get_state() can return an error indication. Make use of it to propagate
failing hardware accesses.

Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---

diff --git a/drivers/pwm/pwm-sprd.c b/drivers/pwm/pwm-sprd.c
index bda8bc5af9768..d866ce345f977 100644
--- a/drivers/pwm/pwm-sprd.c
+++ b/drivers/pwm/pwm-sprd.c
@@ -83,7 +83,7 @@ static int sprd_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
 	if (ret) {
 		dev_err(spc->dev, "failed to enable pwm%u clocks\n",
 			pwm->hwpwm);
-		return 0;
+		return ret;
 	}
 
 	val = sprd_pwm_read(spc, pwm->hwpwm, SPRD_PWM_ENABLE);