Re: [PATCH] gpio: pca953x: Use irqchip template

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On 02/10/2020 13:40, Andy Shevchenko wrote:
On Fri, Oct 02, 2020 at 12:07:50AM +0300, Grygorii Strashko wrote:
On 30/09/2020 16:51, Linus Walleij wrote:
On Wed, Sep 30, 2020 at 12:47 PM Nikhil Devshatwar <nikhil.nd@xxxxxx> wrote:

I am getting a kernel crash on K3 j721e common processor board
when HDMI is plugged in. Following is the full log with crash
for NULL pointer derefence

https://pastebin.ubuntu.com/p/wBPS2ymmqR/

Upon inspection, I found that the "irq_find_mapping" call
in the "pca953x_irq_handler" returns 0 and the same is passed
to "handle_nested_irq"

This would typically happen if the driver using an IRQ
from the PCA953x does not properly request it.

...

We've just got another similar report, don't know the root cause, but it's not HDMI

Does
  e43c26e12dd4 ("gpio: pca953x: Fix uninitialized pending variable")
help?


Looks like it is. Thanks

--
Best regards,
grygorii



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