Messages in this thread Patch in this message | | | From | Tomas Winkler <> | Subject | [char-misc-next] mei: me: wait for hw ready non-interruptible | Date | Tue, 12 Aug 2014 20:16:03 +0300 |
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From: Alexander Usyskin <alexander.usyskin@intel.com>
We cannot handle user interrupt in context of hw initialization so we only wait for time out which is reasonably short Also we don't need to check error from wait, only flag value.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> --- drivers/misc/mei/hw-me.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index a9a0d08..caf0da3 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -266,19 +266,14 @@ static bool mei_me_hw_is_ready(struct mei_device *dev) static int mei_me_hw_ready_wait(struct mei_device *dev) { - int err; - mutex_unlock(&dev->device_lock); - err = wait_event_interruptible_timeout(dev->wait_hw_ready, + wait_event_timeout(dev->wait_hw_ready, dev->recvd_hw_ready, mei_secs_to_jiffies(MEI_HW_READY_TIMEOUT)); mutex_lock(&dev->device_lock); - if (!err && !dev->recvd_hw_ready) { - if (!err) - err = -ETIME; - dev_err(&dev->pdev->dev, - "wait hw ready failed. status = %d\n", err); - return err; + if (!dev->recvd_hw_ready) { + dev_err(&dev->pdev->dev, "wait hw ready failed\n"); + return -ETIME; } dev->recvd_hw_ready = false; @@ -664,7 +659,7 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) dev_dbg(&dev->pdev->dev, "we need to start the dev.\n"); dev->recvd_hw_ready = true; - wake_up_interruptible(&dev->wait_hw_ready); + wake_up(&dev->wait_hw_ready); } else { dev_dbg(&dev->pdev->dev, "Spurious Interrupt\n"); } -- 1.9.3
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