On Sat, Feb 09, 2019 at 10:13:44PM +0300, Sergei Shtylyov wrote:
> I have encountered an interrupt storm  during the eMMC chip probing (and
> the chip finally didn't get detected). It  turned out  that U-Boot  left
> the DMAC interrupts enabled while the  Linux driver didn't use those.
> The SDHI driver's interrupt handler somehow  assumes that, even if an
> SDIO interrupt didn't happen, it should return IRQ_HANDLED. I think that
> if none of the enabled interrupts happened and got handled, we should
> return IRQ_NONE -- that way the kernel IRQ code recoginizes a spurious
> interrupt and masks  it off pretty quickly...
> 
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Looks OK in general.

> +	return ireg ? true : false;

	return ireg;

?