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 4.9-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-4.9 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-4.9/irqchip-irq-imx-gpcv2-fix-spinlock-initialization.patch