diff options
| author |   Alexander Usyskin <alexander.usyskin@intel.com> | 2017-01-27 16:32:41 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-31 11:07:43 +0100 |
| commit | 7c47d2ca0feca767479329da23523ed798acb854 (patch) | |
| tree | f03a44bf5f5bdc9fa765de4e94feb9f697210c3b /drivers/misc | |
| parent | mei: bus: unregister callbacks upon me client disable call (diff) | |
| download | linux-dev-7c47d2ca0feca767479329da23523ed798acb854.tar.xz linux-dev-7c47d2ca0feca767479329da23523ed798acb854.zip | |
mei: return error on notification request to a disconnected client
Request for a notification from a disconnected client will be ignored
silently by the FW but the caller should know that the operation hasn't
succeeded.
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')
| -rw-r--r-- | drivers/misc/mei/client.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 619b4702347f..ecfaef93457d 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1331,6 +1331,9 @@ int mei_cl_notify_request(struct mei_cl *cl, return -EOPNOTSUPP; } + if (!mei_cl_is_connected(cl)) + return -ENODEV; + rets = pm_runtime_get(dev->dev); if (rets < 0 && rets != -EINPROGRESS) { pm_runtime_put_noidle(dev->dev); |