Merge 4.7-rc4 into staging-next

We want the fixes in here, and we can resolve a merge issue in
drivers/iio/industrialio-trigger.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index 6e8300d6a737..e1b2dcebdc2e 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -603,11 +603,15 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver)
                 }
         }
 
-        list_add_tail(&driver->pending, &gadget_driver_pending_list);
-        pr_info("udc-core: couldn't find an available UDC - added [%s] to list of pending drivers\n",
-                driver->function);
+        if (!driver->match_existing_only) {
+                list_add_tail(&driver->pending, &gadget_driver_pending_list);
+                pr_info("udc-core: couldn't find an available UDC - added [%s] to list of pending drivers\n",
+                        driver->function);
+                ret = 0;
+        }
+
         mutex_unlock(&udc_lock);
-        return 0;
+        return ret;
 found:
         ret = udc_bind_to_driver(udc, driver);
         mutex_unlock(&udc_lock);