Patch "mei: fix return value on disconnection" has been added to the 4.4-stable tree

Patch "mei: fix return value on disconnection" has been added to the 4.4-stable tree

[gregkh]

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

    mei: fix return value on disconnection

to the 4.4-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-fix-return-value-on-disconnection.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 2d4d5481e2d6f93b25fcfb13a9f20bbfbf54266a Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Thu, 23 Jun 2016 00:25:31 +0300
Subject: mei: fix return value on disconnection

From: Tomas Winkler <tomas.winkler@intel.com>

commit 2d4d5481e2d6f93b25fcfb13a9f20bbfbf54266a upstream.

Correct errno on client disconnection is -ENODEV not -EBUSY

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/misc/mei/bus.c  |    2 +-
 drivers/misc/mei/main.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -144,7 +144,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl,
 		mutex_lock(&bus->device_lock);
 
 		if (!mei_cl_is_connected(cl)) {
-			rets = -EBUSY;
+			rets = -ENODEV;
 			goto out;
 		}
 	}
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -207,7 +207,7 @@ static ssize_t mei_read(struct file *fil
 
 		mutex_lock(&dev->device_lock);
 		if (!mei_cl_is_connected(cl)) {
-			rets = -EBUSY;
+			rets = -ENODEV;
 			goto out;
 		}
 	}


Patches currently in stable-queue which might be from tomas.winkler@intel.com are

queue-4.4/mei-fix-return-value-on-disconnection.patch
queue-4.4/mei-me-disable-driver-on-spt-sps-firmware.patch
queue-4.4/mei-me-fix-place-for-kaby-point-device-ids.patch