Patch "[media] rc: sunxi-cir: Initialize the spinlock properly" has been added to the 4.4-stable tree

Patch "[media] rc: sunxi-cir: Initialize the spinlock properly" 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

    [media] rc: sunxi-cir: Initialize the spinlock properly

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:
     rc-sunxi-cir-initialize-the-spinlock-properly.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 768acf46e1320d6c41ed1b7c4952bab41c1cde79 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@csie.org>
Date: Tue, 22 Dec 2015 02:27:35 -0200
Subject: [media] rc: sunxi-cir: Initialize the spinlock properly

From: Chen-Yu Tsai <wens@csie.org>

commit 768acf46e1320d6c41ed1b7c4952bab41c1cde79 upstream.

The driver allocates the spinlock but fails to initialize it correctly.
The kernel reports a BUG indicating bad spinlock magic when spinlock
debugging is enabled.

Call spin_lock_init() on it to initialize it correctly.

Fixes: b4e3e59fb59c ("[media] rc: add sunxi-ir driver")

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/rc/sunxi-cir.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/media/rc/sunxi-cir.c
+++ b/drivers/media/rc/sunxi-cir.c
@@ -153,6 +153,8 @@ static int sunxi_ir_probe(struct platfor
 	if (!ir)
 		return -ENOMEM;
 
+	spin_lock_init(&ir->ir_lock);
+
 	if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir"))
 		ir->fifo_size = 64;
 	else


Patches currently in stable-queue which might be from wens@csie.org are

queue-4.4/rc-sunxi-cir-initialize-the-spinlock-properly.patch