diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2007-12-12 00:02:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-12-17 21:47:15 +0300 |
| commit | d48bd977e0dd8c17081d12242bfc09d743ea0d26 (patch) | |
| tree | f55e55a14cc938a3cd62026181a06c7c398f80ee | |
| parent | f88ed90d8627d0d3d93b330d6d2012c2934fb54e (diff) | |
| download | linux-d48bd977e0dd8c17081d12242bfc09d743ea0d26.tar.xz | |
USB: fix locking loop by avoiding flush_scheduled_work
This patch (as1027) replaces a call to flush_scheduled_work() -- a
dangerous routine to invoke, especially while holding any sort of lock
-- with calls to cancel_work_sync() and cancel_delayed_work_sync().
This fixes Bugzilla #9532.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/core/hub.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 13b326a13377..b04d232d4c65 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -522,9 +522,9 @@ static void hub_quiesce(struct usb_hub *hub) /* (blocking) stop khubd and related activity */ usb_kill_urb(hub->urb); if (hub->has_indicators) - cancel_delayed_work(&hub->leds); - if (hub->has_indicators || hub->tt.hub) - flush_scheduled_work(); + cancel_delayed_work_sync(&hub->leds); + if (hub->tt.hub) + cancel_work_sync(&hub->tt.kevent); } static void hub_activate(struct usb_hub *hub) |