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

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[ Upstream commit 768acf46e1 ]

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: b4e3e59fb5 ("[media] rc: add sunxi-ir driver")

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
This commit is contained in:
Chen-Yu Tsai
2015-12-22 02:27:35 -02:00
committed by Sasha Levin
parent 4476dc6770
commit 33c7c20d62
1 changed files with 2 additions and 0 deletions
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2
drivers/media/rc/sunxi-cir.c
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@@ -153,6 +153,8 @@ static int sunxi_ir_probe(struct platform_device *pdev)
if (!ir) if (!ir)
return -ENOMEM; return -ENOMEM;
spin_lock_init(&ir->ir_lock);
if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir")) if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir"))
ir->fifo_size = 64; ir->fifo_size = 64;
else else