Patch "Input: drv260x - fix input device's parent assignment" has been added to the 4.8-stable tree

Patch "Input: drv260x - fix input device's parent assignment" has been added to the 4.8-stable tree

[gregkh]

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

    Input: drv260x - fix input device's parent assignment

to the 4.8-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:
     input-drv260x-fix-input-device-s-parent-assignment.patch
and it can be found in the queue-4.8 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 5a8a6b89c15766446d845671d574a9243b6d8786 Mon Sep 17 00:00:00 2001
From: Jingkui Wang <jkwang@google.com>
Date: Mon, 12 Dec 2016 13:51:46 -0800
Subject: Input: drv260x - fix input device's parent assignment

From: Jingkui Wang <jkwang@google.com>

commit 5a8a6b89c15766446d845671d574a9243b6d8786 upstream.

We were assigning I2C bus controller instead of client as parent device.
Besides being logically wrong, it messed up with devm handling of input
device. As a result we were leaving input device and event node behind
after rmmod-ing the driver, which lead to a kernel oops if one were to
access the event node later.

Let's remove the assignment and rely on devm_input_allocate_device() to
set it up properly for us.

Signed-off-by: Jingkui Wang <jkwang@google.com>
Fixes: 7132fe4f5687 ("Input: drv260x - add TI drv260x haptics driver")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/misc/drv260x.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -592,7 +592,6 @@ static int drv260x_probe(struct i2c_clie
 	}
 
 	haptics->input_dev->name = "drv260x:haptics";
-	haptics->input_dev->dev.parent = client->dev.parent;
 	haptics->input_dev->close = drv260x_close;
 	input_set_drvdata(haptics->input_dev, haptics);
 	input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);


Patches currently in stable-queue which might be from jkwang@google.com are

queue-4.8/input-drv260x-fix-input-device-s-parent-assignment.patch