linux-kernel - Re: [PATCH 2/3] ftrace: Return EINVAL when writing invalid val to set_ftrace

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Message-ID: <20091104014435.GB5092@nowhere>
Date:	Wed, 4 Nov 2009 02:44:36 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] ftrace: Return EINVAL when writing invalid val to
	set_ftrace_filter

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@...fujitsu.com>
> ---


Acked-by: Frederic Weisbecker <fweisbec@...il.com>

But shouldn't we have the same kind of check from
ftrace_match_module_records() if we haven't matched
anything with the regex?

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