Re: [PATCH] kernel: kallsyms: parameters checking, for EXPORT_SYMBOL_GPLfunctions

From: Chen Gang
Date: Thu Apr 11 2013 - 00:28:15 EST

On 2013å04æ11æ 10:52, Rusty Russell wrote:
>>> >> Or is someone already doing this?
>>> >>
>> >
>> > really has:
>> >
>> > kernel: __wake_up_sync_key in kernel/sched/core.c.
>> > lib: *printf.
>> > mm: kfree.
> No, I mean "is someone calling these functions with NULL".
> Cheers,
> Rusty.

often "kfree(NULL)", that is ok. it will let caller easier using it.
also often give 0 size to snprintf, it still let caller easy using.

if we treat EXPORT functions of kallsyms as commonly used (or we want to)
I suggest to give parameter check for them.



Chen Gang

Asianux Corporation
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