4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tyler Baker <tyler.ba...@linaro.org>
commit 75eb5e1e7b4edbc8e8f930de59004d21cb46961f upstream.
The raw_spinlock in the IMX GPCV2 interupt chip is not initialized before
usage. That results in a lockdep splat:
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Add the missing raw_spin_lock_init() to the setup code.
Fixes: e324c4dc4a59 ("irqchip/imx-gpcv2: IMX GPCv2 driver for wakeup sources")
Signed-off-by: Tyler Baker <tyler.ba...@linaro.org>
Reviewed-by: Fabio Estevam <fabio.este...@nxp.com>
Cc: ja...@lakedaemon.net
Cc: marc.zyng...@arm.com
Cc: shawn...@kernel.org
Cc: andrew.smir...@gmail.com
Cc: linux-arm-ker...@lists.infradead.org
Link: http://lkml.kernel.org/r/20170413222731.5917-1-tyler.ba...@linaro.org
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/irqchip/irq-imx-gpcv2.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -230,6 +230,8 @@ static int __init imx_gpcv2_irqchip_init
return -ENOMEM;
}
+ raw_spin_lock_init(&cd->rlock);
+
cd->gpc_base = of_iomap(node, 0);
if (!cd->gpc_base) {
pr_err("fsl-gpcv2: unable to map gpc registers\n");
