return value of platform_get_irq

[Uwe Kleine-König]

Hello Julia,

in commit 305b3228 the return value indicating failure in
platform_get_irq was changed.

I tried to create a semantic patch for that, but I have failed as spatch
always says something like:

	Fatal error: exception Failure("minus: parse error: ...

Actually what is needed is that (probably) all usages of:

	ret = platform_get_irq(dev, num);
	if (!ret) {
		...

and equivalent are converted to

	ret = platform_get_irq(dev, num);
	if (ret <= 0) {
		...

(Actually I think "ret < 0" would be more correct in most situations,
but as 0 was handled as error before it's more conservative to keep it
this way.)

I assume it's easy for you to come up with a patch.

Best regards
Uwe

-- 
Pengutronix e.K.                              | Uwe Kleine-König            |
Industrial Linux Solutions                    | http://www.pengutronix.de/  |
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