From e2b5602af76dec75f474e4173afb4215007ecfa5 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 20 Jul 2017 12:48:17 +0200 Subject: [PATCH] pwm: tiehrpwm: fix clock imbalance in probe error path 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 Signed-off-by: Thierry Reding --- 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)