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SubjectRe: [PATCH] mfd: ucb1x00: remove NO_IRQ check
You need to send this _to_ me as I need to merge it with my other
changes. This patch on its own does not make sense - it only makes
sense with the rest of my SA11x0 patch stack.

NAK for Lee to merge this.

On Tue, Sep 06, 2016 at 03:03:57PM +0200, Arnd Bergmann wrote:
> probe_irq_off() returns '0' on failure, not NO_IRQ, so the check
> in this driver is clearly wrong. This replaces it with the
> regular '!irq' check used in other drivers.
>
> The sa1100 platform that this driver is used on originally numbered
> all its interrupts starting at '0', which would have conflicted with
> this change, but as of commit 18f3aec ("ARM: 8230/1: sa1100: shift
> IRQs by one"), this is not a problem any more.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/mfd/ucb1x00-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
> index 48bea5038654..d6fb2e1a759a 100644
> --- a/drivers/mfd/ucb1x00-core.c
> +++ b/drivers/mfd/ucb1x00-core.c
> @@ -537,7 +537,7 @@ static int ucb1x00_probe(struct mcp *mcp)
> ucb1x00_enable(ucb);
> ucb->irq = ucb1x00_detect_irq(ucb);
> ucb1x00_disable(ucb);
> - if (ucb->irq == NO_IRQ) {
> + if (!ucb->irq) {
> dev_err(&ucb->dev, "IRQ probe failed\n");
> ret = -ENODEV;
> goto err_no_irq;
> --
> 2.9.0
>

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