pwm: rockchip: 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: Heiko Stuebner <heiko@sntech.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-10-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-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 3ec7d1756903428f1c13c0ab507d09307bf4130c..7f084eb34092342d6e7868a3da394df64036d99f 100644 (file)
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -70,11 +70,11 @@ static int rockchip_pwm_get_state(struct pwm_chip *chip,
 
        ret = clk_enable(pc->pclk);
        if (ret)
-               return 0;
+               return ret;
 
        ret = clk_enable(pc->clk);
        if (ret)
-               return 0;
+               return ret;
 
        clk_rate = clk_get_rate(pc->clk);