[4.2.y-ckt stable] Patch "[media] rc: sunxi-cir: Initialize the spinlock properly" has been added to the 4.2.y-ckt tree
Kamal Mostafa
kamal at canonical.com
Wed Jan 27 00:10:22 UTC 2016
This is a note to let you know that I have just added a patch titled
[media] rc: sunxi-cir: Initialize the spinlock properly
to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree
which can be found at:
http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue
This patch is scheduled to be released in version 4.2.8-ckt3.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 4.2.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Kamal
---8<------------------------------------------------------------
>From 9f213bbb3f98c1766be95e913e76bb25c05dea08 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens at csie.org>
Date: Tue, 22 Dec 2015 02:27:35 -0200
Subject: [media] rc: sunxi-cir: Initialize the spinlock properly
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 at csie.org>
Acked-by: Hans de Goede <hdegoede at redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab at osg.samsung.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
drivers/media/rc/sunxi-cir.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
index 7830aef..40f7768 100644
--- a/drivers/media/rc/sunxi-cir.c
+++ b/drivers/media/rc/sunxi-cir.c
@@ -153,6 +153,8 @@ static int sunxi_ir_probe(struct platform_device *pdev)
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
--
1.9.1
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