From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Mon, 3 Jun 2013 16:13:39 +0000 (+0530)
Subject: usb: dwc3: omap: improve error handling of dwc3_omap_probe
X-Git-Tag: upstream/snapshot3+hdmi~4849^2~60^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=594daba1bcb0510cdc9dccfbab9e6fd5d9cc94e6;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

usb: dwc3: omap: improve error handling of dwc3_omap_probe

Improved the error handling of dwc3_omap_probe so that on error
conditions dwc3_omap is left in the original state.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 34638b9..f8f76e6 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -347,7 +347,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0) {
 		dev_err(dev, "get_sync failed with err %d\n", ret);
-		return ret;
+		goto err0;
 	}
 
 	reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
@@ -376,7 +376,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(dev, "failed to request IRQ #%d --> %d\n",
 				omap->irq, ret);
-		return ret;
+		goto err1;
 	}
 
 	dwc3_omap_enable_irqs(omap);
@@ -384,10 +384,21 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 	ret = of_platform_populate(node, NULL, NULL, dev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to create dwc3 core\n");
-		return ret;
+		goto err2;
 	}
 
 	return 0;
+
+err2:
+	dwc3_omap_disable_irqs(omap);
+
+err1:
+	pm_runtime_put_sync(dev);
+
+err0:
+	pm_runtime_disable(dev);
+
+	return ret;
 }
 
 static int dwc3_omap_remove(struct platform_device *pdev)