diff options
Diffstat (limited to 'drivers/misc/mei/hw-me.c')
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 346633ebc6e6..3172dc095b53 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1373,9 +1373,20 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) /* check if we need to start the dev */ if (!mei_host_is_ready(dev)) { if (mei_hw_is_ready(dev)) { - dev_dbg(&dev->dev, "we need to start the dev.\n"); - dev->recvd_hw_ready = true; - wake_up(&dev->wait_hw_ready); + /* synchronized by dev mutex */ + if (waitqueue_active(&dev->wait_hw_ready)) { + dev_dbg(&dev->dev, "we need to start the dev.\n"); + dev->recvd_hw_ready = true; + wake_up(&dev->wait_hw_ready); + } else if (dev->dev_state != MEI_DEV_UNINITIALIZED && + dev->dev_state != MEI_DEV_POWERING_DOWN && + dev->dev_state != MEI_DEV_POWER_DOWN) { + dev_dbg(&dev->dev, "Force link reset.\n"); + schedule_work(&dev->reset_work); + } else { + dev_dbg(&dev->dev, "Ignore this interrupt in state = %d\n", + dev->dev_state); + } } else { dev_dbg(&dev->dev, "Spurious Interrupt\n"); } |