Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (205 commits)
  USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h
  USB: UHCI: Support big endian GRUSBHC HC
  sparc: add {read,write}*_be routines
  USB: UHCI: Add support for big endian descriptors
  USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier
  USB: UHCI: Add support for big endian mmio
  usb-storage: Correct adjust_quirks to include latest flags
  usb/isp1760: Fix possible unlink problems
  usb/isp1760: Move function isp1760_endpoint_disable() within file.
  USB: remove remaining usages of hcd->state from usbcore and fix regression
  usb: musb: ux500: add configuration and build options for ux500 dma
  usb: musb: ux500: add dma glue layer for ux500
  usb: musb: ux500: add dma name for ux500
  usb: musb: ux500: add ux500 specific code for gadget side
  usb: musb: fix compile error
  usb-storage: fix up the unusual_realtek device list
  USB: gadget: f_audio: Fix invalid dereference of initdata
  EHCI: don't rescan interrupt QHs needlessly
  OHCI: fix regression caused by nVidia shutdown workaround
  USB: OTG: msm: Free VCCCX regulator even if we can't set the voltage
  ...

1 files changed, 20 insertions, 1 deletions

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 3214ca375d64..61ff927928ab 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -892,10 +892,11 @@ static int dummy_udc_probe (struct platform_device *pdev)
 		return rc;
 	}
 
-	platform_set_drvdata (pdev, dum);
 	rc = device_create_file (&dum->gadget.dev, &dev_attr_function);
 	if (rc < 0)
 		device_unregister (&dum->gadget.dev);
+	else
+		platform_set_drvdata(pdev, dum);
 	return rc;
 }
 
@@ -1995,11 +1996,29 @@ static int __init init (void)
 	retval = platform_device_add(the_hcd_pdev);
 	if (retval < 0)
 		goto err_add_hcd;
+	if (!the_controller) {
+		/*
+		 * The hcd was added successfully but its probe function failed
+		 * for some reason.
+		 */
+		retval = -EINVAL;
+		goto err_add_udc;
+	}
 	retval = platform_device_add(the_udc_pdev);
 	if (retval < 0)
 		goto err_add_udc;
+	if (!platform_get_drvdata(the_udc_pdev)) {
+		/*
+		 * The udc was added successfully but its probe function failed
+		 * for some reason.
+		 */
+		retval = -EINVAL;
+		goto err_probe_udc;
+	}
 	return retval;
 
+err_probe_udc:
+	platform_device_del(the_udc_pdev);
 err_add_udc:
 	platform_device_del(the_hcd_pdev);
 err_add_hcd: