Re: [PATCH 2/3] ftrace: Return EINVAL when writing invalid val toset_ftrace_filter

From: Li Zefan
Date: Tue Nov 03 2009 - 21:59:38 EST


Frederic Weisbecker wrote:
> On Tue, Nov 03, 2009 at 08:56:28AM +0800, Li Zefan wrote:
>> Currently it doesn't warn user on invald value:
>>
>> # echo nonexist_symbol > set_ftrace_filter
>>
>> Better make it return failure.
>>
>> Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
>> ---
>
>
> Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
>
> But shouldn't we have the same kind of check from
> ftrace_match_module_records() if we haven't matched
> anything with the regex?
>

Right, I overlooked it.

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