[added to the 4.1 stable tree] [media] rc: sunxi-cir: Initialize the spinlock properly
From: Sasha Levin <hidden>
Date: 2016-02-10 15:12:52
Subsystem:
media input infrastructure (v4l/dvb), rc-core / lirc framework, the rest · Maintainers:
Mauro Carvalho Chehab, Sean Young, Linus Torvalds
From: Chen-Yu Tsai <redacted>
This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 768acf46e1320d6c41ed1b7c4952bab41c1cde79 ]
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 <redacted>
Acked-by: Hans de Goede <redacted>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <redacted>
Signed-off-by: Sasha Levin <redacted>
---
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
--
2.5.0