1 files changed, 27 insertions, 38 deletions

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 64e1f7c67b08..a9ca9adba391 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -61,32 +61,36 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
         struct dwc3_pci         *glue;
         int                     ret = -ENOMEM;
         int                     devid;
+        struct device           *dev = &pci->dev;
 
-        glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+        glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
         if (!glue) {
-                dev_err(&pci->dev, "not enough memory\n");
-                goto err0;
+                dev_err(dev, "not enough memory\n");
+                return -ENOMEM;
         }
 
-        glue->dev       = &pci->dev;
+        glue->dev = dev;
 
         ret = pci_enable_device(pci);
         if (ret) {
-                dev_err(&pci->dev, "failed to enable pci device\n");
-                goto err1;
+                dev_err(dev, "failed to enable pci device\n");
+                return -ENODEV;
         }
 
         pci_set_power_state(pci, PCI_D0);
         pci_set_master(pci);
 
         devid = dwc3_get_device_id();
-        if (devid < 0)
-                goto err2;
+        if (devid < 0) {
+                ret = -ENOMEM;
+                goto err1;
+        }
 
         dwc3 = platform_device_alloc("dwc3", devid);
         if (!dwc3) {
-                dev_err(&pci->dev, "couldn't allocate dwc3 device\n");
-                goto err3;
+                dev_err(dev, "couldn't allocate dwc3 device\n");
+                ret = -ENOMEM;
+                goto err1;
         }
 
         memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
@@ -102,41 +106,37 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
 
         ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
         if (ret) {
-                dev_err(&pci->dev, "couldn't add resources to dwc3 device\n");
-                goto err4;
+                dev_err(dev, "couldn't add resources to dwc3 device\n");
+                goto err2;
         }
 
         pci_set_drvdata(pci, glue);
 
-        dma_set_coherent_mask(&dwc3->dev, pci->dev.coherent_dma_mask);
+        dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
 
-        dwc3->dev.dma_mask = pci->dev.dma_mask;
-        dwc3->dev.dma_parms = pci->dev.dma_parms;
-        dwc3->dev.parent = &pci->dev;
-        glue->dwc3      = dwc3;
+        dwc3->dev.dma_mask = dev->dma_mask;
+        dwc3->dev.dma_parms = dev->dma_parms;
+        dwc3->dev.parent = dev;
+        glue->dwc3 = dwc3;
 
         ret = platform_device_add(dwc3);
         if (ret) {
-                dev_err(&pci->dev, "failed to register dwc3 device\n");
-                goto err4;
+                dev_err(dev, "failed to register dwc3 device\n");
+                goto err3;
         }
 
         return 0;
 
-err4:
+err3:
         pci_set_drvdata(pci, NULL);
         platform_device_put(dwc3);
 
-err3:
-        dwc3_put_device_id(devid);
-
 err2:
-        pci_disable_device(pci);
+        dwc3_put_device_id(devid);
 
 err1:
-        kfree(glue);
+        pci_disable_device(pci);
 
-err0:
         return ret;
 }
 
@@ -148,7 +148,6 @@ static void __devexit dwc3_pci_remove(struct pci_dev *pci)
         platform_device_unregister(glue->dwc3);
         pci_set_drvdata(pci, NULL);
         pci_disable_device(pci);
-        kfree(glue);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
@@ -171,14 +170,4 @@ MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
 
-static int __devinit dwc3_pci_init(void)
-{
-        return pci_register_driver(&dwc3_pci_driver);
-}
-module_init(dwc3_pci_init);
-
-static void __exit dwc3_pci_exit(void)
-{
-        pci_unregister_driver(&dwc3_pci_driver);
-}
-module_exit(dwc3_pci_exit);
+module_pci_driver(dwc3_pci_driver);