3.19.8-ckt14 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
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: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
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 340f7f5..147a558 100644
--- a/drivers/media/rc/sunxi-cir.c
+++ b/drivers/media/rc/sunxi-cir.c
@@ -154,6 +154,8 @@ static int sunxi_ir_probe(struct platform_device *pdev)
if (!ir)
return -ENOMEM;
+ spin_lock_init(&ir->ir_lock);
+
/* Clock */
ir->apb_clk = devm_clk_get(dev, "apb");
if (IS_ERR(ir->apb_clk)) {
--
1.9.1
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