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 <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

Author: Uwe Kleine-König

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);