From 7c47d2ca0feca767479329da23523ed798acb854 Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Fri, 27 Jan 2017 16:32:41 +0200 Subject: 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 Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/client.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/misc') 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); -- cgit v1.2.3