From ffcdc18d64d73ecce49c182f969977ae88ff4384 Mon Sep 17 00:00:00 2001 From: Vikram Pandita <vikram.pandita@ti.com> Date: Fri, 25 May 2007 21:31:07 -0700 Subject: [PATCH] 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> --- drivers/usb/core/hub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 08f0c22fa9173..7946d7b6c71a0 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 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, ep0_reinit(udev); release_address(udev); usb_put_dev(udev); - if (status == -ENOTCONN) + if ((status == -ENOTCONN) || (status == -ENOTSUPP)) break; }