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Message-ID: <20230714102217.35e2153c@gandalf.local.home>
Date:   Fri, 14 Jul 2023 10:22:17 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>,
        Zheng Yejian <zhengyejian1@...wei.com>
Subject: Re: [PATCH 2/2] tracing: Add free_trace_iter_content() helper
 function

On Fri, 14 Jul 2023 17:47:57 +0900
Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:

> > @@ -6709,7 +6723,12 @@ static int tracing_open_pipe(struct inode *inode, struct file *filp)
> >  	}
> >  
> >  	trace_seq_init(&iter->seq);
> > -	iter->trace = tr->current_trace;
> > +
> > +	iter->trace = kzalloc(sizeof(*iter->trace), GFP_KERNEL);
> > +	if (!iter->trace)
> > +		goto fail;
> > +
> > +	*iter->trace = *tr->current_trace;  
> 
> Hmm, you allocate iter->trace here (again)

Bah, that looks like it got out of sync with the previous patch (which
removed that). That's not suppose to be there.

I'll fix this an send out a v2. Thanks for catching that!

-- Steve

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