[PATCHv4 1/5] arm64: Add support for hooks to handle undefined instructions
punit.agrawal at arm.com
Fri Nov 14 09:39:25 PST 2014
Catalin Marinas <catalin.marinas at arm.com> writes:
> On Wed, Nov 12, 2014 at 11:44:48AM +0000, Punit Agrawal wrote:
>> +int register_undef_hook(struct undef_hook *hook)
>> + unsigned long flags;
>> + raw_spin_lock_irqsave(&undef_lock, flags);
>> + list_add(&hook->node, &undef_hook);
>> + raw_spin_unlock_irqrestore(&undef_lock, flags);
>> + return 0;
> I missed this. Why do we need this function to return something? I don't
> see how it would fail.
You're right. I don't remember why I changed the return type when
porting this over from arm. I'll update this and affected code.
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