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USB: remove iteration limit in hub_tt_work()

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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>
This commit is contained in:
Alan Stern 2012-10-31 13:09:07 -04:00 committed by Greg Kroah-Hartman
parent bcbec053d2
commit 571e41214e
1 changed files with 0 additions and 4 deletions
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4
drivers/usb/core/hub.c
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@ -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);