usb: dwc3: no need to initialize ret variable

First usage of ret variable will re-write initial value. Thus, there is no need
to initialize it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc3/core.c

@@ -626,7 +626,7 @@ static int dwc3_probe(struct platform_device *pdev)
 	struct resource		*res;
 	struct dwc3		*dwc;
 
-	int			ret = -ENOMEM;
+	int			ret;
 
 	void __iomem		*regs;
 	void			*mem;

drivers/usb/dwc3/dwc3-exynos.c

@@ -110,12 +110,12 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	struct device		*dev = &pdev->dev;
 	struct device_node	*node = dev->of_node;
 
-	int			ret = -ENOMEM;
+	int			ret;
 
 	exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL);
 	if (!exynos) {
 		dev_err(dev, "not enough memory\n");
-		goto err1;
+		return -ENOMEM;
 	}
 
 	/*
@@ -125,21 +125,20 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	 */
 	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
 	if (ret)
-		goto err1;
+		return ret;
 
 	platform_set_drvdata(pdev, exynos);
 
 	ret = dwc3_exynos_register_phys(exynos);
 	if (ret) {
 		dev_err(dev, "couldn't register PHYs\n");
-		goto err1;
+		return ret;
 	}
 
 	clk = devm_clk_get(dev, "usbdrd30");
 	if (IS_ERR(clk)) {
 		dev_err(dev, "couldn't get clock\n");
-		ret = -EINVAL;
-		goto err1;
+		return -EINVAL;
 	}
 
 	exynos->dev	= dev;
@@ -189,7 +188,6 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	regulator_disable(exynos->vdd33);
 err2:
 	clk_disable_unprepare(clk);
-err1:
 	return ret;
 }
 

drivers/usb/dwc3/dwc3-omap.c

@@ -393,7 +393,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 	struct extcon_dev	*edev;
 	struct regulator	*vbus_reg = NULL;
 
-	int			ret = -ENOMEM;
+	int			ret;
 	int			irq;
 
 	int			utmi_mode = 0;

drivers/usb/dwc3/dwc3-pci.c

@@ -99,7 +99,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
 	struct resource		res[2];
 	struct platform_device	*dwc3;
 	struct dwc3_pci		*glue;
-	int			ret = -ENOMEM;
+	int			ret;
 	struct device		*dev = &pci->dev;
 
 	glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);

drivers/usb/dwc3/gadget.c

@@ -584,7 +584,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
 {
 	struct dwc3		*dwc = dep->dwc;
 	u32			reg;
-	int			ret = -ENOMEM;
+	int			ret;
 
 	dev_vdbg(dwc->dev, "Enabling %s\n", dep->name);