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 <[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-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);