1 files changed, 39 insertions, 15 deletions

diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
index 00772fc53490..88a3c5690fea 100644
--- a/drivers/pwm/pwm-omap-dmtimer.c
+++ b/drivers/pwm/pwm-omap-dmtimer.c
@@ -256,7 +256,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
 	if (!timer_pdev) {
 		dev_err(&pdev->dev, "Unable to find Timer pdev\n");
 		ret = -ENODEV;
-		goto put;
+		goto err_find_timer_pdev;
 	}
 
 	timer_pdata = dev_get_platdata(&timer_pdev->dev);
@@ -264,7 +264,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
 		dev_dbg(&pdev->dev,
 			 "dmtimer pdata structure NULL, deferring probe\n");
 		ret = -EPROBE_DEFER;
-		goto put;
+		goto err_platdata;
 	}
 
 	pdata = timer_pdata->timer_ops;
@@ -283,30 +283,25 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
 	    !pdata->write_counter) {
 		dev_err(&pdev->dev, "Incomplete dmtimer pdata structure\n");
 		ret = -EINVAL;
-		goto put;
+		goto err_platdata;
 	}
 
 	if (!of_get_property(timer, "ti,timer-pwm", NULL)) {
 		dev_err(&pdev->dev, "Missing ti,timer-pwm capability\n");
 		ret = -ENODEV;
-		goto put;
+		goto err_timer_property;
 	}
 
 	dm_timer = pdata->request_by_node(timer);
 	if (!dm_timer) {
 		ret = -EPROBE_DEFER;
-		goto put;
+		goto err_request_timer;
 	}
 
-put:
-	of_node_put(timer);
-	if (ret < 0)
-		return ret;
-
 	omap = devm_kzalloc(&pdev->dev, sizeof(*omap), GFP_KERNEL);
 	if (!omap) {
-		pdata->free(dm_timer);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_alloc_omap;
 	}
 
 	omap->pdata = pdata;
@@ -339,27 +334,56 @@ put:
 	ret = pwmchip_add(&omap->chip);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to register PWM\n");
-		omap->pdata->free(omap->dm_timer);
-		return ret;
+		goto err_pwmchip_add;
 	}
 
+	of_node_put(timer);
+
 	platform_set_drvdata(pdev, omap);
 
 	return 0;
+
+err_pwmchip_add:
+
+	/*
+	 * *omap is allocated using devm_kzalloc,
+	 * so no free necessary here
+	 */
+err_alloc_omap:
+
+	pdata->free(dm_timer);
+err_request_timer:
+
+err_timer_property:
+err_platdata:
+
+	put_device(&timer_pdev->dev);
+err_find_timer_pdev:
+
+	of_node_put(timer);
+
+	return ret;
 }
 
 static int pwm_omap_dmtimer_remove(struct platform_device *pdev)
 {
 	struct pwm_omap_dmtimer_chip *omap = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = pwmchip_remove(&omap->chip);
+	if (ret)
+		return ret;
 
 	if (pm_runtime_active(&omap->dm_timer_pdev->dev))
 		omap->pdata->stop(omap->dm_timer);
 
 	omap->pdata->free(omap->dm_timer);
 
+	put_device(&omap->dm_timer_pdev->dev);
+
 	mutex_destroy(&omap->mutex);
 
-	return pwmchip_remove(&omap->chip);
+	return 0;
 }
 
 static const struct of_device_id pwm_omap_dmtimer_of_match[] = {