USB: make ksuspend_usbd thread non-freezable

This patch (as1012b) makes the ksuspend_usbd kernel thread
non-freezable.  Since the PM core has been changed to lock all devices
during a system sleep, the thread no longer needs to be frozen.  It
won't interfere with a system sleep because before trying to resume a
root hub device, it acquires the device's lock.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 8f14237..bc5edac 100644 (file)
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -230,7 +230,7 @@ static int ksuspend_usb_init(void)
         * singlethreaded.  Its job doesn't justify running on more
         * than one CPU.
         */
-       ksuspend_usb_wq = create_freezeable_workqueue("ksuspend_usbd");
+       ksuspend_usb_wq = create_singlethread_workqueue("ksuspend_usbd");
        if (!ksuspend_usb_wq)
                return -ENOMEM;
        return 0;