Patch "optee: fix invalid of_node_put() in optee_driver_init()" has been added to the 4.14-stable tree

Patch "optee: fix invalid of_node_put() in optee_driver_init()" has been added to the 4.14-stable tree

[gregkh]

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

    optee: fix invalid of_node_put() in optee_driver_init()

to the 4.14-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:
     optee-fix-invalid-of_node_put-in-optee_driver_init.patch
and it can be found in the queue-4.14 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 f044113113dd95ba73916bde10e804d3cdfa2662 Mon Sep 17 00:00:00 2001
From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Mon, 9 Oct 2017 11:11:49 +0200
Subject: optee: fix invalid of_node_put() in optee_driver_init()

From: Jens Wiklander <jens.wiklander@linaro.org>

commit f044113113dd95ba73916bde10e804d3cdfa2662 upstream.

The first node supplied to of_find_matching_node() has its reference
counter decreased as part of call to that function. In optee_driver_init()
after calling of_find_matching_node() it's invalid to call of_node_put() on
the supplied node again.

So remove the invalid call to of_node_put().

Reported-by: Alex Shi <alex.shi@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Cc: <andi@linux-stable.l.notmuch.email>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tee/optee/core.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -590,7 +590,6 @@ static int __init optee_driver_init(void
 		return -ENODEV;
 
 	np = of_find_matching_node(fw_np, optee_match);
-	of_node_put(fw_np);
 	if (!np)
 		return -ENODEV;
 


Patches currently in stable-queue which might be from jens.wiklander@linaro.org are

queue-4.14/optee-fix-invalid-of_node_put-in-optee_driver_init.patch