On Thursday, September 8, 2016 11:41:12 AM CEST Tony Lindgren wrote:
> Hi,
>
> Looks like commit 39de2c4275a9 ("mfd: syscon: Make use of of_iomap")
> makes at least MMC PBIAS regulator stop working on omap3.
>
> That's probably because of_syscon_register uses the now unintialized
> struct resource res to set syscon_config.max_register.
Looks correct. Lee, please send a revert of that patch to Linus
along with any other fixes you may have.
> I have a strange deja vu feeling that we've been through this
> before See commit ca668f0edfae ("mfd: syscon: Set regmap max_register
> in of_syscon_register")
>
> Maybe we should add comments there instead?
I wonder why gcc didn't detect this case. I usually do my
test builds with -Wmaybe-uninitialized that should have
caught it but didn't.
Arnd
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