diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2016-02-07 23:35:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-07 14:47:20 -0800 |
| commit | 850f8940a6a38563ff401073fd845414ab49c5ed (patch) | |
| tree | 05fbeef8d289f9fa9378c004a7ec053f98fac89d /drivers/misc/mei/bus.c | |
| parent | a1f9ae2bd264e3aed95aacd0102bd22a0422b8d1 (diff) | |
| download | linux-850f8940a6a38563ff401073fd845414ab49c5ed.tar.gz | |
mei: bus: fix notification event delivery
Call wake_up cl->ev_wait only in case there is no bus client registered to the event notification. Second, since we don't have exclusive waiter wake_up_interruptible_all is not used correctly here. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/bus.c')
| -rw-r--r-- | drivers/misc/mei/bus.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index a40d8e24ecda..990f4f65c35e 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -230,25 +230,30 @@ static void mei_cl_bus_event_work(struct work_struct *work) * mei_cl_bus_notify_event - schedule notify cb on bus client * * @cl: host client + * + * Return: true if event was scheduled + * false if the client is not waiting for event */ -void mei_cl_bus_notify_event(struct mei_cl *cl) +bool mei_cl_bus_notify_event(struct mei_cl *cl) { struct mei_cl_device *cldev = cl->cldev; if (!cldev || !cldev->event_cb) - return; + return false; if (!(cldev->events_mask & BIT(MEI_CL_EVENT_NOTIF))) - return; + return false; if (!cl->notify_ev) - return; + return false; set_bit(MEI_CL_EVENT_NOTIF, &cldev->events); schedule_work(&cldev->event_work); cl->notify_ev = false; + + return true; } /** |