Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()"

commit e871db8 upstream.

This reverts commit 6e22e3a.

The bug the patch describes to, has been already fixed in commit
2df6948 ("USB: cdc-wdm: don't enable interrupts in USB-giveback")
so need to this, revert it.

Fixes: 6e22e3a ("usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()")
Cc: stable <[email protected]>
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Sebastian Andrzej Siewior

drivers/usb/class/cdc-wdm.c

@@ -457,7 +457,7 @@ static int service_outstanding_interrupt(struct wdm_device *desc)
 
 	set_bit(WDM_RESPONDING, &desc->flags);
 	spin_unlock_irq(&desc->iuspin);
-	rv = usb_submit_urb(desc->response, GFP_ATOMIC);
+	rv = usb_submit_urb(desc->response, GFP_KERNEL);
 	spin_lock_irq(&desc->iuspin);
 	if (rv) {
 		dev_err(&desc->intf->dev,