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mei: me: wait for hw ready non-interruptible

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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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2014-08-12 20:16:03 +03:00 committed by Greg Kroah-Hartman
parent e60cdc907c
commit 2c2b93ecac
1 changed files with 5 additions and 10 deletions
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15
drivers/misc/mei/hw-me.c
View file

@ -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");
}