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@xxxxxxxxxxxxxxx> know about it.
>From 768acf46e1320d6c41ed1b7c4952bab41c1cde79 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@xxxxxxxx>
Date: Tue, 22 Dec 2015 02:27:35 -0200
Subject: [media] rc: sunxi-cir: Initialize the spinlock properly
From: Chen-Yu Tsai <wens@xxxxxxxx>
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@xxxxxxxx>
Acked-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxx are
queue-4.4/rc-sunxi-cir-initialize-the-spinlock-properly.patch
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