This is a note to let you know that I've just added the patch titled irqchip/irq-imx-gpcv2: Fix spinlock initialization to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: irqchip-irq-imx-gpcv2-fix-spinlock-initialization.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 75eb5e1e7b4edbc8e8f930de59004d21cb46961f Mon Sep 17 00:00:00 2001 From: Tyler Baker <tyler.baker@xxxxxxxxxx> Date: Thu, 13 Apr 2017 15:27:31 -0700 Subject: irqchip/irq-imx-gpcv2: Fix spinlock initialization From: Tyler Baker <tyler.baker@xxxxxxxxxx> 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@xxxxxxxxxx> Reviewed-by: Fabio Estevam <fabio.estevam@xxxxxxx> Cc: jason@xxxxxxxxxxxxxx Cc: marc.zyngier@xxxxxxx Cc: shawnguo@xxxxxxxxxx Cc: andrew.smirnov@xxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/20170413222731.5917-1-tyler.baker@xxxxxxxxxx Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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"); Patches currently in stable-queue which might be from tyler.baker@xxxxxxxxxx are queue-4.4/irqchip-irq-imx-gpcv2-fix-spinlock-initialization.patch