Patch "i2c: add missing of_node_put in i2c_mux_del_adapters" has been added to the 4.10-stable tree

Patch "i2c: add missing of_node_put in i2c_mux_del_adapters" has been added to the 4.10-stable tree

[gregkh]

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

    i2c: add missing of_node_put in i2c_mux_del_adapters

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:
     i2c-add-missing-of_node_put-in-i2c_mux_del_adapters.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 <stable@vger.kernel.org> know about it.


>From 2e1e4949f9dfb053122785cd73540bb1e61f768b Mon Sep 17 00:00:00 2001
From: Qi Hou <qi.hou@windriver.com>
Date: Fri, 3 Mar 2017 15:57:11 +0800
Subject: i2c: add missing of_node_put in i2c_mux_del_adapters

From: Qi Hou <qi.hou@windriver.com>

commit 2e1e4949f9dfb053122785cd73540bb1e61f768b upstream.

Refcount of of_node is increased with of_node_get() in i2c_mux_add_adapter().
It must be decreased with of_node_put() in i2c_mux_del_adapters().

Signed-off-by: Qi Hou <qi.hou@windriver.com>
Reviewed-by: Zhang Xiao <xiao.zhang@windriver.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/i2c/i2c-mux.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -429,6 +429,7 @@ void i2c_mux_del_adapters(struct i2c_mux
 	while (muxc->num_adapters) {
 		struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters];
 		struct i2c_mux_priv *priv = adap->algo_data;
+		struct device_node *np = adap->dev.of_node;
 
 		muxc->adapter[muxc->num_adapters] = NULL;
 
@@ -438,6 +439,7 @@ void i2c_mux_del_adapters(struct i2c_mux
 
 		sysfs_remove_link(&priv->adap.dev.kobj, "mux_device");
 		i2c_del_adapter(adap);
+		of_node_put(np);
 		kfree(priv);
 	}
 }


Patches currently in stable-queue which might be from qi.hou@windriver.com are

queue-4.10/i2c-add-missing-of_node_put-in-i2c_mux_del_adapters.patch