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usb: core: need to call usb_phy_notify_connect after device setup 

Since we notify disconnecting based on the usb device is existed
(port_dev->child, the child device at roothub is not NULL), we
need to notify connect after device has been registered.

This fixes a bug that do fast plug in/out test, and the notify_disconnect
is not called due to roothub child is NULL and the enumeration has failed.

Cc: v3.17+ <stable@vger.kernel.org>
Signed-off-by: Tony Zheng <Tony.Zheng@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Tony Zheng 2014-10-17 19:43:02 +08:00 committed by Greg Kroah-Hartman
parent d1d9548256
commit 01ed67dc70
1 changed files with 4 additions and 3 deletions
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7
drivers/usb/core/hub.c
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@ -4468,9 +4468,6 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
if (retval)
goto fail;
if (hcd->usb_phy && !hdev->parent)
usb_phy_notify_connect(hcd->usb_phy, udev->speed);
/*
* Some superspeed devices have finished the link training process
* and attached to a superspeed hub port, but the device descriptor
@ -4783,6 +4780,10 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
port_dev->child = NULL;
spin_unlock_irq(&device_state_lock);
mutex_unlock(&usb_port_peer_mutex);
} else {
if (hcd->usb_phy && !hdev->parent)
usb_phy_notify_connect(hcd->usb_phy,
udev->speed);
}
}