[PATCH v4 2/2] powerpc: Uprobes port to powerpc

[Benjamin Herrenschmidt]

On Fri, 2012-08-24 at 11:13 +1000, Michael Ellerman wrote:
> 
> Yeah. A NULL regs here is a kernel bug, so I think it's actually
> preferable to crash than silently return. 

Or best, if you think there's a remote chance that the bug might hit:

	if (WARN(!regs))
		return

Cheers,
Ben.