Re: [PATCH] drivers: i2c: exynos5: irq spinlock rt-safe

[Thomas Gleixner]

On Tue, 25 Aug 2015, Anders Roxell wrote:

> The exynos5_i2c_message_start enables interrupts while holding the i2c
> lock which is sought by the irq handler. If an IRQ is received before
> this lock is released then a deadlock occurs.

That's crap. The interrupt handler runs in an irq thread as RT forces
all normal interrupts to that.

Thanks,

	tglx

 
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