Patch "spi: fix parent-device reference leak" has been added to the 4.3-stable tree

Patch "spi: fix parent-device reference leak" has been added to the 4.3-stable tree

[gregkh]

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

    spi: fix parent-device reference leak

to the 4.3-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:
     spi-fix-parent-device-reference-leak.patch
and it can be found in the queue-4.3 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 157f38f993919b648187ba341bfb05d0e91ad2f6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 14 Dec 2015 16:16:19 +0100
Subject: spi: fix parent-device reference leak

From: Johan Hovold <johan@kernel.org>

commit 157f38f993919b648187ba341bfb05d0e91ad2f6 upstream.

Fix parent-device reference leak due to SPI-core taking an unnecessary
reference to the parent when allocating the master structure, a
reference that was never released.

Note that driver core takes its own reference to the parent when the
master device is registered.

Fixes: 49dce689ad4e ("spi doesn't need class_device")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/spi/spi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1627,7 +1627,7 @@ struct spi_master *spi_alloc_master(stru
 	master->bus_num = -1;
 	master->num_chipselect = 1;
 	master->dev.class = &spi_master_class;
-	master->dev.parent = get_device(dev);
+	master->dev.parent = dev;
 	spi_master_set_devdata(master, &master[1]);
 
 	return master;


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

queue-4.3/spi-fix-parent-device-reference-leak.patch