From: Alexander Usyskin <[email protected]> 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 <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> --- drivers/misc/mei/client.c | 3 +++ 1 file changed, 3 insertions(+) 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); -- 2.7.4
