diff options
Diffstat (limited to 'drivers/misc/mei/wd.c')
| -rw-r--r-- | drivers/misc/mei/wd.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index 755a58305a7e..0824166a7303 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -67,6 +67,7 @@ int mei_wd_host_init(struct mei_device *dev) /* look for WD client and connect to it */ dev->wd_cl.state = MEI_FILE_DISCONNECTED; dev->wd_timeout = MEI_WD_DEFAULT_TIMEOUT; + dev->wd_state = MEI_WD_IDLE; /* find ME WD client */ mei_me_cl_update_filext(dev, &dev->wd_cl, @@ -128,18 +129,17 @@ int mei_wd_send(struct mei_device *dev) * -EIO when message send fails * -EINVAL when invalid message is to be sent */ -int mei_wd_stop(struct mei_device *dev, bool preserve) +int mei_wd_stop(struct mei_device *dev) { int ret; - u16 wd_timeout = dev->wd_timeout; - cancel_delayed_work(&dev->timer_work); - if (dev->wd_cl.state != MEI_FILE_CONNECTED || !dev->wd_timeout) + if (dev->wd_cl.state != MEI_FILE_CONNECTED || + dev->wd_state != MEI_WD_RUNNING) return 0; - dev->wd_timeout = 0; memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_STOP_MSG_SIZE); - dev->stop = true; + + dev->wd_state = MEI_WD_STOPPING; ret = mei_flow_ctrl_creds(dev, &dev->wd_cl); if (ret < 0) @@ -161,13 +161,14 @@ int mei_wd_stop(struct mei_device *dev, bool preserve) } else { dev->wd_pending = true; } - dev->wd_stopped = false; + mutex_unlock(&dev->device_lock); ret = wait_event_interruptible_timeout(dev->wait_stop_wd, - dev->wd_stopped, 10 * HZ); + dev->wd_state == MEI_WD_IDLE, + msecs_to_jiffies(MEI_WD_STOP_TIMEOUT)); mutex_lock(&dev->device_lock); - if (dev->wd_stopped) { + if (dev->wd_state == MEI_WD_IDLE) { dev_dbg(&dev->pdev->dev, "wd: stop completed ret=%d.\n", ret); ret = 0; } else { @@ -177,9 +178,6 @@ int mei_wd_stop(struct mei_device *dev, bool preserve) "wd: stop failed to complete ret=%d.\n", ret); } - if (preserve) - dev->wd_timeout = wd_timeout; - out: return ret; } @@ -239,7 +237,7 @@ static int mei_wd_ops_stop(struct watchdog_device *wd_dev) return -ENODEV; mutex_lock(&dev->device_lock); - mei_wd_stop(dev, false); + mei_wd_stop(dev); mutex_unlock(&dev->device_lock); return 0; @@ -269,6 +267,8 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev) goto end; } + dev->wd_state = MEI_WD_RUNNING; + /* Check if we can send the ping to HW*/ if (dev->mei_host_buffer_is_empty && mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) { |