diff options
Diffstat (limited to 'drivers/usb/gadget/dummy_hcd.c')
| -rw-r--r-- | drivers/usb/gadget/dummy_hcd.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 3214ca375d64..d3dcabc1a5fc 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; } @@ -1905,6 +1906,7 @@ static int dummy_hcd_probe(struct platform_device *pdev) if (!hcd) return -ENOMEM; the_controller = hcd_to_dummy (hcd); + hcd->has_tt = 1; retval = usb_add_hcd(hcd, 0, 0); if (retval != 0) { @@ -1995,11 +1997,29 @@ 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: |