Patch "mfd: core: Fix device reference leak in mfd_clone_cell" has been added to the 4.4-stable tree

Patch "mfd: core: Fix device reference leak in mfd_clone_cell" has been added to the 4.4-stable tree

[gregkh]

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

    mfd: core: Fix device reference leak in mfd_clone_cell

to the 4.4-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:
     mfd-core-fix-device-reference-leak-in-mfd_clone_cell.patch
and it can be found in the queue-4.4 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 722f191080de641f023feaa7d5648caf377844f5 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 1 Nov 2016 11:38:18 +0100
Subject: mfd: core: Fix device reference leak in mfd_clone_cell

From: Johan Hovold <johan@kernel.org>

commit 722f191080de641f023feaa7d5648caf377844f5 upstream.

Make sure to drop the reference taken by bus_find_device_by_name()
before returning from mfd_clone_cell().

Fixes: a9bbba996302 ("mfd: add platform_device sharing support for mfd")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/mfd/mfd-core.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -354,6 +354,8 @@ int mfd_clone_cell(const char *cell, con
 					clones[i]);
 	}
 
+	put_device(dev);
+
 	return 0;
 }
 EXPORT_SYMBOL(mfd_clone_cell);


Patches currently in stable-queue which might be from johan@kernel.org are

queue-4.4/mfd-core-fix-device-reference-leak-in-mfd_clone_cell.patch
queue-4.4/pm-sleep-fix-device-reference-leak-in-test_suspend.patch
queue-4.4/uwb-fix-device-reference-leaks.patch