Fix handling of return value in omap3xx_hwmod_init and sr warning.

[Paul Walmsley]

On Mon, 7 Nov 2011, Juergen Kilb wrote:

> After this, I got some new warnings during bootup about sr1_hwmod and sr2_hwmod.
> This is fixed with PATCH2/2.

Thanks for the patches, but these should be already fixed by 

http://www.spinics.net/lists/arm-kernel/msg143549.html

- Paul