Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 18/45] irqchip/irq-imx-gpcv2: Fix spinlock initialization | Date | Wed, 19 Apr 2017 16:56:00 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Tyler Baker <tyler.baker@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.baker@linaro.org> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Cc: jason@lakedaemon.net Cc: marc.zyngier@arm.com Cc: shawnguo@kernel.org Cc: andrew.smirnov@gmail.com Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20170413222731.5917-1-tyler.baker@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@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");
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