linux-kernel - Re: [PATCH] Fix compiler warning in ftrace.c

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Message-ID: <1307069135.3667.33.camel@gandalf.stny.rr.com>
Date:	Thu, 02 Jun 2011 22:45:35 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	GuoWen Li <guowen.li.linux@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix compiler warning in ftrace.c

On Wed, 2011-06-01 at 19:18 +0800, GuoWen Li wrote:
> kernel/trace/ftrace.c: In function ‘ftrace_regex_write.clone.15’:
> kernel/trace/ftrace.c:2743:6: warning: ‘ret’ may be used uninitialized in this 
> function

Thanks, but this isn't just a fix of a warning, it fixes an actual bug.

-- Steve

> 
> Signed-off-by: GuoWen Li
> ---
>  kernel/trace/ftrace.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> index 1ee417f..204b3eb 100644
> --- a/kernel/trace/ftrace.c
> +++ b/kernel/trace/ftrace.c
> @@ -2740,7 +2740,7 @@ static int ftrace_process_regex(struct ftrace_hash 
> *hash,
>  {
>         char *func, *command, *next = buff;
>         struct ftrace_func_command *p;
> -       int ret;
> +       int ret = -EINVAL;
>  
>         func = strsep(&next, ":");


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