Thread (43 messages) 43 messages, 3 authors, 2012-08-23

[RFC/PATCH 02/13] serial: omap: always return IRQ_HANDLED

From: Alan Cox <hidden>
Date: 2012-08-21 11:32:59
Also in: linux-omap, linux-serial, lkml 

On Tue, 21 Aug 2012 12:15:44 +0300
Felipe Balbi [off-list ref] wrote:

Even if we enter our IRQ handler just to notice
that the our device didn't generate the IRQ,
that still means "handling" and IRQ, so let's
return IRQ_HANDLED.
That looks wrong - you'll defeat the stuck IRQ protection. If we didn't
cause the IRQ then we are IRQ_NONE ?
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