USB Core: hub.c: prevent re-enumeration on HNP

Patch is to prevent the OTG host of doing 3 times enumeration of
device when the Host suspends for HNP.  The error code used in
this case is ENOTSUPP.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 08f0c22fa917..7946d7b6c71a 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1443,7 +1443,7 @@ int usb_new_device(struct usb_device *udev)
                         if (err < 0)
                                 dev_dbg(&udev->dev, "HNP fail, %d\n", err);
                 }
-                err = -ENODEV;
+                err = -ENOTSUPP;
                 goto fail;
         }
 #endif
@@ -2582,7 +2582,7 @@ loop:
                 ep0_reinit(udev);
                 release_address(udev);
                 usb_put_dev(udev);
-                if (status == -ENOTCONN)
+                if ((status == -ENOTCONN) || (status == -ENOTSUPP))
                         break;
         }