usb hub: use flush_work instead of flush_work_sync
flush_work_sync and flush_work are now the same and flush_work_sync has been deprecated. This fixes the following warning: drivers/usb/core/hub.c: In function hub_quiesce: drivers/usb/core/hub.c:1216:3: warning: flush_work_sync is deprecated (declared at include/linux/workqueue.h:448) [-Wdeprecated-declarations] Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1213,7 +1213,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type)
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if (hub->has_indicators)
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cancel_delayed_work_sync(&hub->leds);
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if (hub->tt.hub)
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flush_work_sync(&hub->tt.clear_work);
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flush_work(&hub->tt.clear_work);
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}
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/* caller has locked the hub device */
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