Patch "mei: don't wait for os version message reply" has been added to the 4.10-stable tree

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

mei: don't wait for os version message reply

to the 4.10-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-don-t-wait-for-os-version-message-reply.patch
and it can be found in the queue-4.10 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: Sun, 5 Mar 2017 21:40:42 +0200
Subject: mei: don't wait for os version message reply

From: Alexander Usyskin <[email protected]>

commit c6240cacdb2c3cb56a21fb3ea0c105154ab87a2a upstream.

The driver still struggles with firmwares that do not replay to the OS version request. It is safe not waiting for the replay. First, the driver doesn't do anything with the replay second the connection is closed immediately, hence the packet will be just safely discarded in case it is received and last the driver won't get stuck if the firmware won't reply.

---
 drivers/misc/mei/bus-fixup.c |   14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

@@ -112,11 +112,9 @@ struct mkhi_msg {
 
 static int mei_osver(struct mei_cl_device *cldev)
 {
-	int ret;
 	const size_t size = sizeof(struct mkhi_msg_hdr) +
 			    sizeof(struct mkhi_fwcaps) +
 			    sizeof(struct mei_os_ver);
-	size_t length = 8;
 	char buf[size];
 	struct mkhi_msg *req;
 	struct mkhi_fwcaps *fwcaps;

@@ -137,15 +135,7 @@ static int mei_osver(struct mei_cl_devic
 	os_ver = (struct mei_os_ver *)fwcaps->data;
 	os_ver->os_type = OSTYPE_LINUX;
 
-	ret = __mei_cl_send(cldev->cl, buf, size, mode);
-	if (ret < 0)
-		return ret;
-
-	ret = __mei_cl_recv(cldev->cl, buf, length, 0);
-	if (ret < 0)
-		return ret;
-
-	return 0;
+	return __mei_cl_send(cldev->cl, buf, size, mode);
 }
 
 static void mei_mkhi_fix(struct mei_cl_device *cldev)

@@ -160,7 +150,7 @@ static void mei_mkhi_fix(struct mei_cl_d
 		return;
 
 	ret = mei_osver(cldev);
-	if (ret)
+	if (ret < 0)
 		dev_err(&cldev->dev, "OS version command failed %d\n", ret);
 
 	mei_cldev_disable(cldev);

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

queue-4.10/mei-don-t-wait-for-os-version-message-reply.patch