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USB: don't unsuspend for a new connection

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This patch (as889) prevents the hub driver from trying to resume a
port when there is a new connection.  For one thing, the resume is not
needed -- the upcoming port reset will clear the suspend feature
automatically.  For another, on some systems the resume fails and
causes problems.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern 2007-05-04 11:53:30 -04:00 committed by Greg Kroah-Hartman
parent b6f6436da0
commit 8adb478678
1 changed files with 0 additions and 13 deletions
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13
drivers/usb/core/hub.c
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@ -2426,19 +2426,6 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
return;
}
#ifdef CONFIG_USB_SUSPEND
/* If something is connected, but the port is suspended, wake it up. */
if (portstatus & USB_PORT_STAT_SUSPEND) {
status = hub_port_resume(hub, port1, NULL);
if (status < 0) {
dev_dbg(hub_dev,
"can't clear suspend on port %d; %d\n",
port1, status);
goto done;
}
}
#endif
for (i = 0; i < SET_CONFIG_TRIES; i++) {
struct usb_device *udev;