USB: remove iteration limit in hub_tt_work()

This patch (as1621) removes the limit on the number of loops allowed
in hub_tt_work().  The value is arbitrary, and it's silly to have a
limit in the first place -- anything beyond the limit would not get
handled.

Besides, it's most unlikely that we'll ever need to clear more than a
couple of TT buffers at any time.

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

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index fbaf3c3dbf07..90accdefdc7d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -741,7 +741,6 @@ static void hub_tt_work(struct work_struct *work)
         struct usb_hub          *hub =
                 container_of(work, struct usb_hub, tt.clear_work);
         unsigned long           flags;
-        int                     limit = 100;
 
         spin_lock_irqsave (&hub->tt.lock, flags);
         while (!list_empty(&hub->tt.clear_list)) {
@@ -751,9 +750,6 @@ static void hub_tt_work(struct work_struct *work)
                 const struct hc_driver  *drv;
                 int                     status;
 
-                if (!hub->quiescing && --limit < 0)
-                        break;
-
                 next = hub->tt.clear_list.next;
                 clear = list_entry (next, struct usb_tt_clear, clear_list);
                 list_del (&clear->clear_list);