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 bda8bc5af97683ba31f6993d15f4f64254139348..d866ce345f97707e9bd5f8943d5d62723802dcb0 100644 (file)
--- 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);