On 11/09/2014 11:03 PM, Keerthy wrote:
> Correct returning IRQ_HANDLED unconditionally in the irq handler.
> Return IRQ_NONE for some interrupt which we do not expect to be
> handled in this handler. This prevents kernel stalling with back
> to back spurious interrupts.
>
> Signed-off-by: Keerthy <[email protected]>
Consider providing an appropriate fixes comment here as well?
> ---
> drivers/bus/omap_l3_noc.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
> index b5eac29..17d8659 100644
> --- a/drivers/bus/omap_l3_noc.c
> +++ b/drivers/bus/omap_l3_noc.c
> @@ -222,10 +222,14 @@ static irqreturn_t l3_interrupt_handler(int irq, void
> *_l3)
> }
>
> /* Error found so break the for loop */
> - break;
> + return IRQ_HANDLED;
> }
> }
> - return IRQ_HANDLED;
> +
> + dev_err(l3->dev, "L3 %s IRQ not handled!!\n",
> + inttype ? "debug" : "application");
> +
> + return IRQ_NONE;
> }
>
> static const struct of_device_id l3_noc_match[] = {
>
--
Regards,
Nishanth Menon
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