Re: [PATCH AUTOSEL 4.19 4/7] gpio: pca953x: fix pca953x_irq_bus_sync_unlock race

[Pavel Machek]

Hi!

> From: Ian Ray <ian.ray@xxxxxxxxxxxxxxxx>
> 
> [ Upstream commit bfc6444b57dc7186b6acc964705d7516cbaf3904 ]
> 
> Ensure that `i2c_lock' is held when setting interrupt latch and mask in
> pca953x_irq_bus_sync_unlock() in order to avoid races.
> 
> The other (non-probe) call site pca953x_gpio_set_multiple() ensures the
> lock is held before calling pca953x_write_regs().
> 
> The problem occurred when a request raced against irq_bus_sync_unlock()
> approximately once per thousand reboots on an i.MX8MP based system.

I don't see this queued for 5.10-stable.

Best regards,
								Pavel
-- 
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