linux-kernel - [char-misc for 4.9 1/2] mei: bus: fix hw module get/put balance

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Message-Id: <20180827194016.1287-2-tomas.winkler@intel.com>
Date:   Mon, 27 Aug 2018 22:40:15 +0300
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Alexander Usyskin <alexander.usyskin@...el.com>,
        linux-kernel@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>, stable@...r.kernel.org
Subject: [char-misc for 4.9 1/2] mei: bus: fix hw module get/put balance

In case the device is not connected it doesn't 'get'
hw module and hence should not 'put' it on disable.

Cc: <stable@...r.kernel.org> 4.16+
Fixes:'commit 257355a44b99 ("mei: make module referencing local to the bus.c")'
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200455
Tested-by: Georg Müller <georgmueller@....net>
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 drivers/misc/mei/bus.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 7bba62a72921..13c6c9a2248a 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -616,9 +616,8 @@ int mei_cldev_disable(struct mei_cl_device *cldev)
 	if (err < 0)
 		dev_err(bus->dev, "Could not disconnect from the ME client\n");
 
-out:
 	mei_cl_bus_module_put(cldev);
-
+out:
 	/* Flush queues and remove any pending read */
 	mei_cl_flush_queues(cl, NULL);
 	mei_cl_unlink(cl);
-- 
2.14.4