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| author |   Alexander Usyskin <alexander.usyskin@intel.com> | 2014-08-12 20:16:03 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-23 22:56:16 -0700 |
| commit | 2c2b93ecace25c3720e68e6cd7ee47f38c1d2e90 (patch) | |
| tree | d7223dc0fb6cc6225cc34271a636a1678179dae5 /drivers/misc/mei/hw-me.c | |
| parent | Merge tag 'extcon-next-for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next (diff) | |
| download | linux-dev-2c2b93ecace25c3720e68e6cd7ee47f38c1d2e90.tar.xz linux-dev-2c2b93ecace25c3720e68e6cd7ee47f38c1d2e90.zip | |
mei: me: wait for hw ready non-interruptible
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>
Diffstat (limited to 'drivers/misc/mei/hw-me.c')
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index a9a0d08f758e..caf0da335994 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"); } |