[3.13.y-ckt stable] Patch "spi: fix parent-device reference leak" has been added to the 3.13.y-ckt tree

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    spi: fix parent-device reference leak

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt33.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

---8<------------------------------------------------------------

>From 50fc9f5fbb560f790a9fbfcd53cdf3132a4c1f5b Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan at kernel.org>
Date: Mon, 14 Dec 2015 16:16:19 +0100
Subject: spi: fix parent-device reference leak

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 at kernel.org>
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/spi/spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index e2772a8..8571f50 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1251,7 +1251,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
 	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;
--
1.9.1