[PATCH 2/2] pwm: tiehrpwm: fix clock imbalance in probe error path

[Johan Hovold]

Make sure to unprepare the clock before returning on late probe errors.

Fixes: b388f15fd14c ("pwm: pwm-tiehrpwm: Use clk_enable/disable instead 
clk_prepare/unprepare.")
Signed-off-by: Johan Hovold <jo...@kernel.org>
---
 drivers/pwm/pwm-tiehrpwm.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 6e51a075d1a7..387eaf1bac85 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -489,13 +489,18 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
        ret = pwmchip_add(&pc->chip);
        if (ret < 0) {
                dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
-               return ret;
+               goto err_clk_unprepare;
        }
 
        pm_runtime_enable(&pdev->dev);
 
        platform_set_drvdata(pdev, pc);
        return 0;
+
+err_clk_unprepare:
+       clk_unprepare(pc->tbclk);
+
+       return ret;
 }
 
 static int ehrpwm_pwm_remove(struct platform_device *pdev)
-- 
2.13.3