Patch "mei: return error on notification request to a disconnected client" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

mei: return error on notification request to a disconnected client

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mei-return-error-on-notification-request-to-a-disconnected-client.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Alexander Usyskin <[email protected]>
Date: Sat, 7 Oct 2017 22:36:56 +0000
Subject: mei: return error on notification request to a disconnected client

From: Alexander Usyskin <[email protected]>

[ Upstream commit 7c47d2ca0feca767479329da23523ed798acb854 ]

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.

---
 drivers/misc/mei/client.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -1320,6 +1320,9 @@ int mei_cl_notify_request(struct mei_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);

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/mei-return-error-on-notification-request-to-a-disconnected-client.patch