linux-kernel - Re: [PATCH] tracing: initialize variable in create_dyn

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Date:   Thu, 14 Mar 2019 18:19:08 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Frank Rowand <frowand.list@...il.com>
Cc:     linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [PATCH] tracing: initialize variable in create_dyn_event()

On Thu, 14 Mar 2019 14:05:02 -0700
Frank Rowand <frowand.list@...il.com> wrote:

> Hi Steve,
> 
> Ping.

Thanks, this got buried.

> >  static int create_dyn_event(int argc, char **argv)
> >  {
> >  	struct dyn_event_operations *ops;
> > -	int ret;
> > +	int ret = 0;

Probably should be ret = -ENODEV;

As if ret doesn't get set, then no dynamic code has been registered,
and something is truly wrong.

-- Steve


> >  
> >  	if (argv[0][0] == '-' || argv[0][0] == '!')
> >  		return dyn_event_release(argc, argv, NULL);
> >