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

From: Tomas Winkler
Date: Mon Aug 27 2018 - 15:43:08 EST


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

Cc: <stable@xxxxxxxxxxxxxxx> 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 MÃller <georgmueller@xxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
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